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Paper 2.3: R.K. Chang, J. Ducuing and N. Bloembergen, “Relative phase measurement, between fundamental and second harmonic light,” Phys. Rev. Lett. 15, 6–8, (1965).

World Scientific series in 20th century physicsSep 1, 19961 citation

Quantum-Optical Phase and Its Measurement

David Thomas Pegg, Joan A. Vaccaro, Stephen Mark Barnett

Springer proceedings in physicsJan 1, 19946 citations

A new bound on excess frequency noise in second harmonic generation in PPKTP at the 10^−19 level

D. Yeaton-Massey, R. X. Adhikari

We report a bound on the relative frequency fluctuations in nonlinear second harmonic generation. A 1,064 nm Nd:YAG laser is used to read out the phase of a Mach-Zehnder interferometer while PPKTP, a nonlinear crystal, is placed in each arm to generate second harmonic light. By comparing the arm length difference of the Mach Zehnder as read out by the fundamental 1064 nm light, and its second harmonic at 532 nm, we can bound the excess frequency noise introduced in the harmonic generation process. We report an amplitude spectral density of frequency noise with total RMS frequency deviation of 3 mHz and a minimum value of 20 μHz/Hz½ over 250 seconds with a measurement bandwidth of 128 Hz, corresponding to an Allan deviation of 10⁻¹⁹ at 20 seconds.We report a bound on the relative frequency fluctuations in nonlinear second harmonic generation. A 1,064 nm Nd:YAG laser is used to read out the phase of a Mach-Zehnder interferometer while PPKTP, a nonlinear crystal, is placed in each arm to generate second harmonic light. By comparing the arm length difference of the Mach Zehnder as read out by the fundamental 1064 nm light, and its second harmonic at 532 nm, we can bound the excess frequency noise introduced in the harmonic generation process. We report an amplitude spectral density of frequency noise with total RMS frequency deviation of 3 mHz and a minimum value of 20 μHz/Hz½ over 250 seconds with a measurement bandwidth of 128 Hz, corresponding to an Allan deviation of 10⁻¹⁹ at 20 seconds.

arXiv:1208.2011Optics ExpressAug 29, 201216 citations

Phase in classical and nonlinear optics

World Scientific series in contemporary chemical physicsOct 1, 19980 citations

Second harmonic generation and statistical properties of light

ARTUR K. EKERT, Kazimierz Rza̧żewski

Optics CommunicationsFeb 1, 198824 citations

Observation of sub-Poissonian light in traveling-wave second-harmonic generation

Sun-Hyun Youn, Sang-Kyung Choi, Prem Kumar +1 more

We report the generation of sub-Poissonian pulses of light by means of traveling-wave second-harmonic generation (SHG) in a type II phase-matched nonlinear crystal. On direct detection, the quantum noise on the output light, which is polarized orthogonally to the input fundamental field, is measured to be below the shotnoise limit by as much as 0.3 +/- 0.2 dB (6 +/- 4%). We show that the input fundamental-power dependence of the measured Fano factor, direct-detection noise as a fraction of the shot-noise limit, is in qualitative agreement with the quantum theory of SHG.We report the generation of sub-Poissonian pulses of light by means of traveling-wave second-harmonic generation (SHG) in a type II phase-matched nonlinear crystal. On direct detection, the quantum noise on the output light, which is polarized orthogonally to the input fundamental field, is measured to be below the shotnoise limit by as much as 0.3 +/- 0.2 dB (6 +/- 4%). We show that the input fundamental-power dependence of the measured Fano factor, direct-detection noise as a fraction of the shot-noise limit, is in qualitative agreement with the quantum theory of SHG.

Optics LettersOct 1, 199622 citations

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