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Achived Publications

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2005

TEM10 Homodyne as an optical small displacement measurement scheme
16th AIP Congress Proceedings, 76 (2005)
V. Delaubert, M. T. L. Hsu, W. P. Bowen, H. -A. Bachor and P. K. Lam

Squeezing and entanglement delay using slow light
Phys. Rev. A 71, 033809 (2005)
A. Peng, M. Johnsson, W. P. Bowen, P. K. Lam, H. -A. Bachor and J. J. Hope

Continuous variable quantum state sharing via quantum disentanglement
Phys. Rev. A 71, 033814 (2005)
A. M. Lance, T. Symul, W. P. Bowen, B. C. Sanders, T. Tyc, T. C. Ralph and P. K. Lam,

Continuous variable spatial entanglement for bright optical beams
Phys. Rev. A 72, 013802 (2005)
M. T. L. Hsu, W. P. Bowen, N. Treps and P. K. Lam

Quantum Noise Locking
J. Opt. B 7, S421 (2005)
K. McKenzie, E. E. Mikhailov, K. Goda, P. K. Lam, N. Grosse, M. B. Gray, N. Mavalvala and D. E. McClelland

Photothermal fluctuations as a fundamental limit to low-frequency squeezing in a degenerate optical parametric oscillator
Phys. Rev. A 72, 043819 (2005)
K. Goda, K. McKenzie, E. E. Mikhailov, P. K. Lam, D. E. McClelland and N. Mavalvala

No-switching quantum key distribution using broadband modulated coherent light
Phys. Rev. Lett. 95, 180503 (2005)
A. M. Lance, T. Symul, V. Sharma, C. Weedbrook, T. C. Ralph and P. K. Lam

 

2004

A characterization of continuous variable entanglement
Phys. Rev. A 69, 12304 (2004)
W. P. Bowen, R. Schnabel, P. K. Lam and T. C. Ralph

Analysis of a sub-shot-noise power recycled Michelson interferometer
Classical and Quantum Gravity 21, S1037 (2004)
K. McKenzie, B. C. Buchler, D. A. Shaddock, P. K. Lam and D. E. McClelland

Tripartite quantum state sharing
Phys. Rev. Lett. 92, 177903 (2004)
A. M. Lance, T. Symul, W. P. Bowen, B. C. Sanders and P. K. Lam

Nano-displacement measurements using spatially multimode squeezed light
J. Opt. B 6, S664 (2004)
N. Treps, N. Grosse, W. P. Bowen, M. T. L. Hsu, A. Maître, C. Fabre, H. –A. Bachor and P. K. Lam

The quantum laser pointer and other applications of squeezed light
Proc. of the SPIE (San Diego) 5161, 17 (2004)
H. -A. Bachor, W. P. Bowen, N. Grosse, B. C. Buchler, U. L. Andersen, R. Schnabel, P. K. Lam, N. Treps, C. Fabre and A. Maître

Is quantum secret sharing different to the sharing of a quantum secret
Proc. of the SPIE (San Diego) 5161, 127 (2004)
A. M. Lance, T. Symul, W. P. Bowen, T. Tyc, B. C. Sanders and P. K. Lam

Surpassing the standard quantum limit for high sensitivity measurements in optical images using multimode non-classical light
Proceedings of 16th ICOLS, 334 (2004)
C. Fabre, S. Gigan, A. Maître, M. Martinelli, N. Treps, U. Andersen, P. K. Lam, W. P. Bowen, B. C. Buchler, N. Grosse and H. -A. Bachor

Photon number diagram for characterizing continuous variable entanglement
Proceedings of 16th ICOLS, 315 (2004)
W. P. Bowen, M. T. L. Hsu, T. Symul, A. M. Lance, B. C. Buchler, R. Schnabel, N. Treps, H.-A. Bachor T. C. Ralph and P. K. Lam

Quantum state sharing
Proc. of SPIE (Gran Canaria) 5468, 100 (2004)
A. M. Lance, T. Symul, W. P. Bowen, B. C. Sanders, and P. K. Lam

Study of an electro-optic modulator capable of generating simultaneous amplitude and phase modulations
Appl. Opt. 43, 5079 (2004)
B. J. Cusack, B. S. Sheard, D. A. Shaddock, M. B. Gray and P. K. Lam

Squeezed light at sideband frequencies below 100kHz from a single OPA
Opt. Commun. 240, 185 (2004)
R. Schnabel, H. Vahlbruch, A. Franzen, S. Chelkowski, N. Grosse, H. -A. Bachor, W. P. Bowen, P. K. Lam and K. Danzmann

Optimal optical measurement of small displacements
J. Opt. B. 6, 495 (2004)
M. T. L. Hsu, V. Delaubert, P. K. Lam and W. P. Bowen

Squeezing in the Audio Gravitational-Wave Detection Band
Phys. Rev. Lett. 93, 161105 (2004)
K. McKenzie, N. Grosse, W. P. Bowen, S. E. Whitcomb, M. B. Gray, D. E. McClelland and P. K. Lam

Quantum Cryptography Without Switching
Phys. Rev. Lett. 93, 170504 (2004)
C. Weedbrook, A. M. Lance, W. P. Bowen, T. Symul, T. C. Ralph, and P. K. Lam

When quantum noise is deafening
AOS News 18, 18 (2004)
K. McKenzie, M. B. Gray, D. E. McClelland, N. Grosse and P. K. Lam

 

2003

Stokes operator squeezed continuous variable polarization states
Phys. Rev. A 67, 012316 (2003)
R. Schnabel, W. P. Bowen, N. Treps, T. C. Ralph, H. –A. Bachor and P. K. Lam

Experimental investigation of criteria for continuous variable entanglement
Phys. Rev. Lett. 90, 043601 (2003)
W. P. Bowen, R. Schnabel, P. K. Lam and T. C. Ralph

Continuous variable (2,3) threshold quantum secret sharing schemes
N. J. Phys. 5, 4.1-4.13 (2003)
A. M. Lance, T. Symul, W. P. Bowen, T. Tyc, B. C. Sanders and P. K. Lam

Experimental investigation of continuous variable teleportation
Phys. Rev. A 67, 032302 (2003)
W. P. Bowen, N. Treps, B. C. Buchler, R. Schnabel, T. C. Ralph, H. –A. Bachor, T. Symul and P. K. Lam

Biased EPR entanglement and its application to teleportation
J. Mod. Opt. 50, 801 (2003)
W. P. Bowen, P. K. Lam and T. C. Ralph

Optical experiments beyond the quantum limit: squeezing, entanglement and teleportation
Optics and Spectroscopy 94, 711 (2003)
R. Schnabel, W. P. Bowen, N. Treps, B. C. Buchler, T. C. Ralph, P. K. Lam and H.-A. Bachor

Continuous variable polarization entanglement, experiment and analysis
J. Opt. B 5, S467 (2003)
W. P. Bowen, N. Treps, R. Schnabel, T. C. Ralph and P. K. Lam

A quantum laser pointer
Science 301, 940 (2003)
N. Treps, N. Grosse, W. P. Bowen, C. Fabre, H. –A. Bachor and P. K. Lam

Four modes of optical parametric operation for squeezed state generation
E. Phys. J. D 27, 181 (2003)
U. L. Andersen, B. C. Buchler, P. K. Lam, J. W. Wu, J. R. Gao and H. -A. Bachor

Teleportation of continuous variable polarization states
Phys. Rev. A 68, 052308 (2003)
A. Dolinska, B. C. Buchler, W. P. Bowen, T. C. Ralph and P. K. Lam

Unity gain and non-unity gain quantum teleportation
IEEE selected topic quant. electron. 9, 1519 (2003)
W. P. Bowen, N. Treps, B. C. Buchler, R. Schnabel, T. C. Ralph, T. Symul and P. K. Lam

 

2002

Polarization squeezing of continuous variable Stokes parameters
Phys. Rev. Lett. 88, 093601 (2002)
W. P. Bowen, R. Schnabel, H. –A. Bachor and P. K. Lam

Quantum nondemolition measurement with a nonclassical meter input and an electro-optic enhancement
J. Opt. B 4, 229 (2002)
U. L. Andersen, B. C. Buchler, H. –A. Bachor and P. K. Lam

Surpassing the standard quantum limit for optical imaging using non-classical multimode light
Phys. Rev. Lett. 88, 203601 (2002)
N. Treps, U. L. Andersen, B. C. Buchler, P. K. Lam, A. Maître, H. –A. Bachor and C. Fabre

Quantum teleportation with Einstein-Podolsky-Rosen entanglement
The Physicist, 39, 72 (2002)
P. K. Lam, W. P. Bowen and T. C. Ralph

Generation of a phase flipped Gaussian mode for optical measurement
J. Opt. A 4, 393 (2002)
V. Delaubert, D. A. Shaddock, P. K. Lam, B. C. Buchler, H. –A. Bachor and D. E. McClelland

Experimental demonstration of a squeezing-enhanced power-recycled Michelson interferometer for gravitational wave detection
Phys. Rev. Lett. 88, 231102 (2002)
K. McKenzie, D. A. Shaddock, D. E. McClelland, B. C. Buchler and P. K. Lam

Squeezed singly resonant second-harmonic generation in periodically poled lithium niobate
J. Opt. Soc. Am. B 19, 1592 (2002)
M. J. Lawrence, R. L. Byer, M. M. Feyer, W. P. Bowen, P. K. Lam and H. –A. Bachor

Recovery of continuous wave squeezing at low frequencies
J. Opt. B 4, 421 (2002)
W. P. Bowen, R. Schnabel, N. Treps, H. –A. Bachor and P. K. Lam

Experimental demonstration of continuous variable polarization entanglement
Phys. Rev. Lett. 89, 253601 (2002)
W. P. Bowen, R. Schnabel, N. Treps and P. K. Lam

Réduction de bruit quantique spatiale et mesures de petits déplacements en optique
J. de. Physique IV, 12, 5-153 (2002)
N. Treps, A. Maitre, C. Fabre, U. Andersen, B. C. Buchler, P. K. Lam and H. –A. Bachor

Quantum information processing in optical images
Superlattices & Microstructures. 32, 323 (2002)
C. Fabre, U. L. Andersen, H.-A. Bachor, B. C. Buchler, S. Gigan, P. K. Lam, A. Maitre and N. Treps

 

2001

Squeezing more from a quantum nondemolition measurement
Phys. Rev. A 65, 011803(R) (2001)
B. C. Buchler, P. K. Lam, H.-A. Bachor, U. L. Andersen and T. C. Ralph

Generation of continuous variable Einstein-Podolsky-Rosen entanglement via the Kerr nonlinearity in an optical fibre
Phys. Rev. Lett. 86, 4267 (2001)
Ch. Silberhorn, P. K. Lam, O. Weiß, F. König, N. Korolkova, and G. Leuchs

A magic mirror- Quantum applications of the optical beamsplitter
The Physicist 38,78 (2001)
Hans -A. Bachor

Optical transfer functions as a practical tool in quantum optics
Quantum Optics Eds H.J.Carmichael, R.J.Glauber, M.O.Scully, p. 313-333, Springer (2001)
H. -A. Bachor and T. C. Ralph

 

2000

Kerr noise reduction and squeezing
J. Opt. B. 2, 553 (2000)
A. G. White, P. K. Lam, D. E. McClelland, H.-A. Bachor and W. G. Munro

Modulation-free control of a continuous-wave second harmonic generator
J. Opt. A. 2, 400 (2000)
D. A. Shaddock, B. C. Buchler, W. P. Bowen, M. B. Gray and P. K. Lam

Bandpass spectra of evanescent couplers with long period gratings
Electron. Lett. 36, 967 (2000)
P. K. Lam, A. J. Stevenson and J. D. Love

1999

Optimization and transfer of vacuum squeezing from an optical parametric oscillator
J. Opt. B 1, 469 (1999)
P. K. Lam, T. C. Ralph, B. C. Buchler, D. E. McClelland, H.-A. Bachor and J. Gao

Characterizing teleportation in optics
J. Opt. B 1, 483 (1999)
T. C. Ralph, P. K. Lam and R. E. S. Polkinghorne

Understanding and controlling laser intensity noise
Optical and Quantum Electronics, 31, 583 (1999)
T. C. Ralph, E. H. Huntington, C. C. Harb, B. C. Buchler, P. K. Lam, D. E. McClelland and H.-A. Bachor

Enhancement of quantum nondemolition measurements with an electro-optic feed-forward amplifier
Phys Rev. A 60, 4974 (1999)
B. C. Buchler, P. K. Lam and T. C. Ralph

Suppression of classical and quantum radiation pressure noise by electro-optic feedback
Optics Letters. 24, 259 (1999)
B. C. Buchler, M. B. Gray, D. A. Shaddock, T. C. Ralph and D. E. McClelland

1998

Teleportation with bright squeezed light
Phys. Rev. Lett. 81, 5668 (1998)
T. C. Ralph and P. K. Lam

Feedback control of laser intensity noise
Phys Rev. A 57, 1286 (1998)
B. C. Buchler, E. H. Huntington, C. C. Harb and T. C. Ralph

Squeezed light in a frontal-phase-modulated signal-recycled interferometer
Phys Rev. A 57, 3898 (1998)
V. Chickarmane, S. V. Dhurandhar, T. C. Ralph, M. B. Gray, H.-A. Bachor and D. E. McClelland

Noiseless electro-optic processing of optical signals generated with squeezed light
Optics Express 2, 100 (1998)
P. K. Lam, T. C. Ralph, E. H. Huntington, D. E. McClelland and H.-A. Bachor

Optical homodyne tomography of information carrying laser beams
Optics Express 3, 154 (1998)
J. W. Wu, P. K. Lam, M. B. Gray and H.-A. Bachor

Continuously-tunable doubly resonant optical parametric oscillator
Opt. Commun. 148, 117 (1998)
M. Bode, P. K. Lam, I. Freitag, H. -A. Bachor, A. Tünnermann and H. Welling

Noiseless independent signal and power amplification
Opt. Lett. 23, 540 (1998)
E. H. Huntington, P. K. Lam, T. C. Ralph, D. E. McClelland and H. -A. Bachor

High average power Q-switched second harmonic generation with diode-pumped Nd:YAG laser
Electron. Lett. 34, 666 (1998)
P. K. Lam, I. Freitag, M. Bode, A. Tünnermann and H. Welling

Quantum electro-optic control
Optics & Photonics News 9, 44 (1998)
T. C. Ralph, P. K. Lam, E. H. Huntington, B. C. Buchler, D. E. McClelland and H.-A. Bachor

Feedback control of the intensity noise of injection locked lasers
Opt. Commun 145, 359 (1998)
E. H. Huntingotn, B. C. Buchler, C. C. Harb, T. C. Ralph, D. E. McClelland and H.-A. Bachor

 

1997

1.

Noiseless signal amplification using Positive Electro-optic Feedforward
Phys. Rev. Lett. 79, 1471 (1997)
P. K. Lam, E. H. Huntington, T. C. Ralph and H. -A. Bachor

2.

Low noise amplification and efficient squeezing from rate matched lasers
Phys. Rev. A 55, 2326 (1997)
T. C. Ralph

3.

Robust transmission and reconstruction of fragile optical states
Phys. Rev. A 56, 4187 (1997)
T. C. Ralph

4.

Classical and quantum signatures of competing chi (2) nonlinearities
Phys. Rev. A 55, 4511 (1997)
A. G. White, P. K. Lam, M. S. Taubman, M. A. M. Marte, S. Schiller, D. E. McClelland and H. -A. Bachor

5.

Gütegeschaltete Miniatur-Ringlaser mit Frequenzkonversion
Laser und Optoelektronik 29, 70 (1997)
I. Freitag, P. K. Lam and A. Tünnermann

6.

Investigation of polarisation effects in injection locked lasers
Appl. Phys. B 64, 507 (1997)
E. H. Huntington, C. C. Harb, T. C. Ralph, D. E. McClelland and H.-A. Bachor

7.

Intensity-noise dependence of Nd:YAG lasers on their diode-laser pump source
J. Opt. Soc. Am. B 14, 2936 (1997)
C. C. Harb, T. C. Ralph, E. H. Huntington, D. E. McClelland, H.-A. Bachor and I. Freitag

8.

Intensity noise transfer in diode-pumped Nd:YAG lasers
Advanced Solid State Lasers, Vol. 10, Optical Society of America, pp. 380-385 (1997)
I. Freitag, A. Tunnermann, H. Welling, C. Harb, T. Ralph, D. McClelland and H.-A. Bachor

9.

Investigation of Polarisation Effects in Injection Locked Lasers
App. Phys. B 64, 507 (1997)
E. H. Huntington, C. C. Harb, T. C. Ralph, D. E. McClelland and H.-A. Bachor

10.

Comment on 'Noiseless amplification in cavity-based optical systems with an internal two-photon process. II self-frequency-doubling laser and second harmonic generation, self-down-converting laser'
J. Mod. Opt. 44, 651-652 (1997)
A. White, T. Ralph and H.-A. Bachor

11.

Intensity-noise dependence of Nd:YAG lasers on their diode-laser pump source
J. Opt. Soc. Am. B 14, 2936-2945 (1997)
C. Harb, T. Ralph, E. Huntington, D. McClelland, H.-A. Bachor and I. Freitag


1996

1.

Experimental test of modular noise propagation theory for quantum optics
Phys. Rev. A 54, 3400 (1996)
A. G. White, M. S. Taubman, T. C. Ralph, P. K. Lam, D. E. McClelland and H. -A. Bachor

2.

Intensity noise properties of injection locked lasers: Quantum theory using a linearised input-output method
Phys. Rev. A 54, 4359 (1996)
T. C. Ralph, C. C. Harb and H.-A. Bachor

3.

Intensity noise properties of injection locked lasers
Phys. Rev. A 54, 4370 (1996) )
C. C. Harb, T. C. Ralph, E. H. Huntington, I. Freitag, D. E. McClelland and H.-A. Bachor

4.

Cascaded second-order nonlinearity in an optical cavity
Europhys. Lett. 35, 425 (1996)
A. G. White, J. Mlynek and S. Schiller

5.

Active versus passive squeezing by second harmonic generation
J. Opt. Soc. Am B 13, 1337 (1996)
A. G. White, T. C. Ralph and H.-A. Bachor

6.

"Progress in the search for the optimum light source: squeezing experiments with a frequency doubler
Semiclass. Quant. Opt. 7, 715-726 (1995)
H.-A. Bachor, T. C. Ralph, M. S. Taubman, A. G. White, C.C. Harb and D.E.McClelland

7.

Squeezed light from second harmonic generation: experiment versus theory
Opt. Lett. 20, 1316-1318 (1995)
T. C. Ralph, M. S. Taubman, A. G. White, D. E. McClelland and H.-A. Bachor

8.

Retrieving squeezing from classically noisy light
J. Opt. Soc. Am. B 12, 833-839 (1995)
(16) T. C. Ralph and A. G. White

9.

Intensity feedback effects of quantum-limited noise
J. Opt. Soc. Am. B 12, 1792-1800 (1995)
M. S. Taubman, H. Wiseman*, D. E. McClelland and H.-A. Bachor

10.

Comment on Noiseless amplification in cavity based optical systems with an internal two-photon process
J. Mod. Opt. (1996)
A. G. White, T. C. Ralph and H.-A. Bachor


1995

1.

Feedback-enhanced squeezing in second harmonic generation
Phys. Rev. A 51, 3227 (1995)
H. Wiseman, M. S. Taubman and H.-A. Bachor

2.

Control and suppression of power transfer in couplers by periodic index modulation
Electronics Lett. 31, 1233 (1995)
P. K. Lam, A. J. Stevenson, J. D. Love

3.

Progress in the search for the optimum light source: squeezing experiments with a frequency doubler
Semiclass. Quant. Opt. 7, 715 (1995)
H.-A. Bachor, T. C. Ralph, M. S. Taubman, A. G. White, C. C. Harb and D. E. McClelland

4.

Squeezed light from second harmonic generation: experiment versus theory
Opt. Lett. 20, 1316 (1995)
T. C. Ralph, M. S. Taubman, A. G. Whitem D. E. McClelland and H.-A. Bachor

5.

Retrieving squeezing from classically noise light
J. Opt. Soc. Am B 12, 833 (1995)
T. C. Ralph and A. G. White

6.

Intensity feedback effects of quantum-limited noise
J. Opt. Soc. Am B 12, 1792 (1995))
M. S. Taubman, H. Wiseman, D. E. McClelland and H.-A. Bachor

7.

Noiseless amplification of the coherent amplitude of bright squeezed light using a standard laser amplifier
Opt. Commun. 110, 301 (1995)
T. C. Ralph and H.-A. Bachor

8.

Injection locked lasers as amplifiers in Quantum Communications and Measurement
(Plenum, 1995)
Savage, C., and Mu, Y., ed. V.P. Belavkin et al.

9.

Quantum trajectories and classical attractors in second harmonic generation
Phys. Rev. A 51, 792-797 (1995)
Zheng, X., and Savage, C.


1994

1.

Complete atomic population inversion using correlated sidebands
Phys. Rev. Lett. 50, 3500 (1994)
P. K. Lam and C. M. Savage

2.

Suppression of the intensity noise in a diode-pumped neodymium:YAG nonplanar ring laser
IEEE J.of Quantum Electronics, Dec.Issue (1994)
C. Harb, M. B. Gray, H. -A. Bachor, R. Schilling, P. Rottengatter, I. Freitag and H. Welling

3.

Bright squeezed light from a singly resonant frequency doubler
Phys.Rev.Lett. 72, 3807-3810 (1994)
Paschotta, R. *, Collett, M.*, Krz, P.*, Fiedler, K.*, Bachor, H-A. and Mlynek, J.*

4.

Bistability in a 4-level Laser with a Resonant Pump Mode
Phys. Rev. A 49, page 4979 (1994)
Ralph, T.C.

5.

Phase-sensitive above-threshold laser amplifiers
Phys. Rev. A 49, 4093-4100 (1994)
Yi Mu+ and Savage, C.

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