Pages maintained by

Ben Buchler (email)

Pages maintained by

Ben Buchler (email)

**Back to more recent publications**

**2005**

*TEM10 Homodyne as an optical small displacement measurement scheme* 16th AIP Congress Proceedings,

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

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

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

M. T. L. Hsu, W. P. Bowen, N. Treps and P. K. Lam

*Quantum Noise Locking* J. Opt. B

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

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.

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

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

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 |

2. |
Low noise amplification and efficient squeezing from rate matched lasers |

3. |
Robust transmission and reconstruction of fragile optical states |

4. |
Classical and quantum signatures of competing chi (2) nonlinearities |

5. |
Gütegeschaltete Miniatur-Ringlaser mit Frequenzkonversion |

6. |
Investigation of polarisation effects in injection locked lasers |

7. |
Intensity-noise dependence of Nd:YAG lasers on their diode-laser pump source |

8. |
Intensity noise transfer in diode-pumped Nd:YAG lasers |

9. |
Investigation of Polarisation Effects in Injection Locked Lasers |

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' |

11. |
Intensity-noise dependence of Nd:YAG lasers on their diode-laser pump source |

**1996**

1. |
Experimental test of modular noise propagation theory for quantum optics |

2. |
Intensity noise properties of injection locked lasers: Quantum theory using a linearised input-output method |

3. |
Intensity noise properties of injection locked lasers |

4. |
Cascaded second-order nonlinearity in an optical cavity |

5. |
Active versus passive squeezing by second harmonic generation |

6. |
"Progress in the search for the optimum light source: squeezing experiments with a frequency doubler |

7. |
Squeezed light from second harmonic generation: experiment versus theory |

8. |
Retrieving squeezing from classically noisy light |

9. |
Intensity feedback effects of quantum-limited noise |

10. |
Comment on Noiseless amplification in cavity based optical systems with an internal two-photon process |

**1995**

1. |
Feedback-enhanced squeezing in second harmonic generation |

2. |
Control and suppression of power transfer in couplers by periodic index modulation |

3. |
Progress in the search for the optimum light source: squeezing experiments with a frequency doubler |

4. |
Squeezed light from second harmonic generation: experiment versus theory |

5. |
Retrieving squeezing from classically noise light |

6. |
Intensity feedback effects of quantum-limited noise |

7. |
Noiseless amplification of the coherent amplitude of bright squeezed light using a standard laser amplifier |

8. |
Injection locked lasers as amplifiers in Quantum Communications and Measurement |

9. |
Quantum trajectories and classical attractors in second harmonic generation |

**1994**

1. |
Complete atomic population inversion using correlated sidebands |

2. |
Suppression of the intensity noise in a diode-pumped neodymium:YAG nonplanar ring laser |

3. |
Bright squeezed light from a singly resonant frequency doubler |

4. |
Bistability in a 4-level Laser with a Resonant Pump Mode |

5. |
Phase-sensitive above-threshold laser amplifiers |

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