EXTERNAL OPTICAL FEEDBACK EFFECTS ON INTENSITY NOISE OF VERTICAL-CAVITY SURFACE-EMITTING LASERS

Authors
HO KP WALKER JD KAHN JM
Citation
Kp. Ho et al., EXTERNAL OPTICAL FEEDBACK EFFECTS ON INTENSITY NOISE OF VERTICAL-CAVITY SURFACE-EMITTING LASERS, IEEE photonics technology letters, 5(8), 1993, pp. 892-895
Citations number
10
Categorie Soggetti
Optics,"Physics, Applied
Journal title
IEEE photonics technology letters → ACNP
ISSN journal
10411135
Volume
5
Issue
8
Year of publication
1993
Pages
892 - 895
Database
ISI
SICI code
1041-1135(1993)5:8<892:EOFEOI>2.0.ZU;2-C
Abstract
We have experimentally evaluated the effect of external optical feedba ck on the relative intensity noise (RIN) of a vertical-cavity surface- emitting laser (VCSEL) diode. In the absence of optical feedback, the smallest RIN is found to be -135 dB/Hz. For optical feedback levels ap proaching -25 dB, the RIN is degraded by about 20 dB. We have measured feedback-induced power penalties in a 500-Mb/s intensity-modulation/d irect-detection (IM/DD) link and determined that the penalty exceeds 1 dB if the optical feedback ratio is larger than -30 dB.