Explanation of low-frequency relative intensity noise in semiconductor lasers

Su, C. B.; Schlafer, J.; Lauer, R. B.

doi:10.1063/1.103385

Cited by 46 publications

(16 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Thus, the short cavity configuration is less sensitive to external perturbations (sound wave, mechanical vibration, and temperature variations) than the long cavity configuration. The peaks among the RIN spectrum of the proposed laser are due to relatively low contrast which is limited mainly by the available pump sources [23].…”

mentioning

confidence: 99%

Random spaced index modulation for a narrow linewidth tunable fiber laser with low intensity noise

Bao

et al. 2014

Opt. Lett.

View full text Add to dashboard Cite

A tunable random feedback fiber laser with low intensity noise is proposed and experimentally demonstrated. The random feedback is effectively achieved by multiple reflections from 100 randomly spaced refractive index modulation regions over 10 cm SMF in both longitudinal and transverse directions. A tunable erbium-doped fiber ring laser with narrow linewidth of 2.4 kHz and a high side-mode suppression ratio of 59 dB is achieved over a 0.5 nm tuning range. The proposed fiber laser exhibits low relative intensity noise (<-120 dB/Hz) and low frequency fluctuation of ∼3.41×10(-11) over 5 s.

show abstract

mentioning

confidence: 99%

Random spaced index modulation for a narrow linewidth tunable fiber laser with low intensity noise

Bao

et al. 2014

Opt. Lett.

View full text Add to dashboard Cite

show abstract

“…However, we point out that, in practice, the squeezing in the total-intensity noise is limited by other effects, which have been deliberately omitted so far: first, the optical losses inside the cavity, and second, the fact that the perfect anticorrelation between the modes is partially destroyed by various mechanisms, such as self-saturation of each mode 12 or nonlinear gain. 22 When these effects are considered, the calculation shows that the carrier noise picks up some contribution of the large excess noise of the individual modes. However, this contribution remains small in the range of parameters considered in Ref.…”

Section: Appendix B: Phase-amplitude Coupling In Quasi-single-mode Lamentioning

confidence: 99%

Observation of anticorrelated modal noise in a quasi-single-mode laser diode with a Michelson interferometer

Poizat

Grangier

1997

J. Opt. Soc. Am. B

View full text Add to dashboard Cite

To cite this version:Jean-Philippe Poizat, Philippe Grangier. Observation of anticorrelated modal noise in a quasi singlemode laser diode with a Michelson interferometer. Journal of the Optical Society of America B, Optical Society of America, 1997, 14 (11) The light emitted by a quasi-single-mode free-running laser diode is sent through a Michelson interferometer, and the intensity noise of the outgoing light is studied with respect to the path difference between the two arms of the interferometer. The level of this noise is determined by very strong anticorrelations between the main mode and the many very weak, but noisy, longitudinal side modes. The different interference patterns of these various modes can modify the noise compensation effect, leading to a large excess noise. Phase-noise effects also come into the picture, since a Michelson interferometer tuned around a nonzero path difference is a dispersive element capable of converting phase noise into intensity noise. The observed data is in good agreement with a phenomenological model that attributes phase noise and correlated intensity noises to all the modes. The parameters of this model can be inferred from the experimental data. © 1997 Optical Society of America [S0740-3224(97)03111-1]

show abstract

“…Reference [SSL90] analyzes on the origin of RIN in semiconductor lasers, while References [Joi92, OS00] provide information on some topics of measurement. In low-noise conditions, |δI/I 0 | ≪ 1, and assuming that the cross-section distribution is constant, the power fluctuations are related to the fractional amplitude noise α by…”

Section: Am Noise In Optical Systemsmentioning

confidence: 99%

The Measurement of AM noise of Oscillators

Rubiola

2006

2006 IEEE International Frequency Control Symposium and Exposition

View full text Add to dashboard Cite

The close-in AM noise is often neglected, under the assumption that it is a minor problem as compared to phase noise. With the progress of technology and of experimental science, this assumption is no longer true. Yet, information in the literature is scarce or absent.This report describes the measurement of the AM noise of rf/microwave sources in terms of Sα(f ), i.e., the power spectrum density of the fractional amplitude fluctuation α. The proposed schemes make use of commercial power detectors based on Schottky and tunnel diodes, in single-channel and correlation configuration.There follow the analysis of the front-end amplifier at the detector output, the analysis of the methods for the measurement of the powerdetector noise, and a digression about the calibration procedures.The measurement methods are extended to the relative intensity noise (RIN) of optical beams, and to the AM noise of the rf/microwave modulation in photonic systems.Some rf/microwave synthesizers and oscillators have been measured, using correlation and moderate averaging. As an example, the flicker noise of a low-noise quartz oscillator (Wenzel 501-04623E) is Sα = 1.15×10 −13 /f , which is equivalent to an Allan deviation of σα = 4×10 −7 . The measurement systems described exhibit the world-record lowest background noise.

show abstract

Explanation of low-frequency relative intensity noise in semiconductor lasers

Cited by 46 publications

References 5 publications

Random spaced index modulation for a narrow linewidth tunable fiber laser with low intensity noise

Random spaced index modulation for a narrow linewidth tunable fiber laser with low intensity noise

Observation of anticorrelated modal noise in a quasi-single-mode laser diode with a Michelson interferometer

The Measurement of AM noise of Oscillators

Contact Info

Product

Resources

About