Coherent detection is a new attractive detection method in optical transmission, especially in high capacity long-haul
fiber communication systems. Most coherent detection systems use a local laser as the local oscillator rather than using
an optical phase-locked loop (OPLL). In this case, the signal and local laser's wavelength must be as close as possible,
and both should be stable. Wavelength stability of DFB laser is a critical factor for optical coherent detection and other
applications. We use fiber couplers and a fiber phase shifter to buildup an optical 90o optical hybrid, by which the
wavelength fluctuation is monitored with a very high sensitivity.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
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.