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Direct Demodulation and Channel Filtering of Phase-Modulated Signals Using an Injection-Locked VCSEL

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4 Author(s)
Hoghooghi, N. ; CREOL & FPCE: The Coll. of Opt. & Photonics, Univ. of Central Florida, Orlando, FL, USA ; Ozdur, I. ; Bhooplapur, S. ; Delfyett, P.J.

Detection of phase-modulated optical signals without the use of an externally generated local oscillator is demonstrated using an injection-locked vertical-cavity surface-emitting laser. When it is used in a multichannel system, this technique is also capable of actively filtering out one of the phase-modulated optical carriers. The experimental results of the proposed receiver performance in a three-channel optical system are presented here. A signal-to-noise ratio of 75 dBc/Hz is obtained.

Published in:

Photonics Technology Letters, IEEE  (Volume:22 ,  Issue: 20 )

Date of Publication:

Oct.15, 2010

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