TY - GEN
T1 - Measurement of the probability distribution of DFB laser phase-induced intensity noise
AU - Tur, M.
AU - Goldstein, E. L.
PY - 1989
Y1 - 1989
N2 - It is experimentally demonstrated that laser phase-induced intensity noise (PIIN) distributions are in general highly non-Gaussian and in fact often bimodal, thus empirically confirming early theoretical predictions. Specifically, it is shown that when multipath optical systems are driven by sources whose linewidth Δν is small compared to the detection system's electrical bandwidth B, the amplitude distribution of the PIIN is non-Gaussian and has extremely short tails. This is true of the photocurrents generated by self-heterodyne and self-homodyne spectrum analyzers, for which B ≫ Δν is a requirement. It is also true of broadband communication links using externally modulated distributed-feedback (DFB) lasers. One consequence for such links is that when PIIN is their dominant noise sources, they can exhibit a low BER at significantly smaller SNR values than Gaussian statistics predict.
AB - It is experimentally demonstrated that laser phase-induced intensity noise (PIIN) distributions are in general highly non-Gaussian and in fact often bimodal, thus empirically confirming early theoretical predictions. Specifically, it is shown that when multipath optical systems are driven by sources whose linewidth Δν is small compared to the detection system's electrical bandwidth B, the amplitude distribution of the PIIN is non-Gaussian and has extremely short tails. This is true of the photocurrents generated by self-heterodyne and self-homodyne spectrum analyzers, for which B ≫ Δν is a requirement. It is also true of broadband communication links using externally modulated distributed-feedback (DFB) lasers. One consequence for such links is that when PIIN is their dominant noise sources, they can exhibit a low BER at significantly smaller SNR values than Gaussian statistics predict.
UR - http://www.scopus.com/inward/record.url?scp=0024874246&partnerID=8YFLogxK
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AN - SCOPUS:0024874246
SN - 1557520860
T3 - CONFERENCE ON LASERS AND ELECTRO-0PTICS
SP - 438
EP - 440
BT - CONFERENCE ON LASERS AND ELECTRO-0PTICS
A2 - Anon, null
PB - Publ by IEEE
T2 - Summaries of Papers Presented at the Conference on Lasers and Electro-Optics
Y2 - 24 April 1989 through 28 April 1989
ER -