Injection-locked passively mode-locked semiconductor laser for optical heterodyne detection using a single axial mode

Wangkuen Lee; Michael M. Mielke; Shahab Etemad; Peter J. Delfyett Jr.

doi:10.1117/12.541692

3 August 2004 Injection-locked passively mode-locked semiconductor laser for optical heterodyne detection using a single axial mode

Wangkuen Lee, Michael M. Mielke, Shahab Etemad, Peter J. Delfyett Jr.

Author Affiliations +

Proceedings Volume 5435, Enabling Photonic Technologies for Aerospace Applications VI; (2004) https://doi.org/10.1117/12.541692
Event: Defense and Security, 2004, Orlando, Florida, United States

Abstract

The optical heterodyne detection for an extremely densely channelized coherent communication systems using phase coherent optical combs is demonstrated by using a passively modelocked semiconductor laser injection locked to a master laser oscillator. The single sideband noise of the heterodyne beat tone at 13.160 GHz was reduced to -123 dBc/Hz at 100 kHz offset from the carrier by exploiting the excellent noise rejection performance of a commercially available microwave bandpass filter. A signal-to-noise ratio of over 65 dB/Hz has been achieved in a single channel filtered from two analog RF signals detuned by only 200 MHz. These results show improved signal-to-noise ratio and superior crosstalk reduction between densely packed neighboring channels via electrical manipulation of the optical heterodyne detection signal.

Citation Download Citation

Wangkuen Lee, Michael M. Mielke, Shahab Etemad, and Peter J. Delfyett Jr. "Injection-locked passively mode-locked semiconductor laser for optical heterodyne detection using a single axial mode", Proc. SPIE 5435, Enabling Photonic Technologies for Aerospace Applications VI, (3 August 2004); https://doi.org/10.1117/12.541692

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available