Input polarization-independent multi-channel switching using cascaded long-period fiber grating and polarization-maintaining fiber

Chang-Seok Kim; Young-Geun Han; Bernard Choi; John Stuart Nelson; Jin U. Kang

doi:10.1117/12.589710

4 April 2005 Input polarization-independent multi-channel switching using cascaded long-period fiber grating and polarization-maintaining fiber

Chang-Seok Kim, Young-Geun Han, Bernard Choi, John Stuart Nelson, Jin U. Kang

Author Affiliations +

Proceedings Volume 5723, Optical Components and Materials II; (2005) https://doi.org/10.1117/12.589710
Event: Integrated Optoelectronic Devices 2005, 2005, San Jose, California, United States

Abstract

Novel multi-wavelength switching filters based on cascaded long-period fiber grating (LPG) and polarization-maintaining fiber (PMF) in a Sagnac loop configuration are proposed and experimentally demonstrated. While the multi-channel spectrum of PMF Sagnac loop filter is controlled by the polarization state in the loop, the polarization-independence of the LPG filter is used to drop one channel. The polarization-independence of the cascaded LPG filter is also used for the fixed periodic loss spectrum to drop multiple channels in the loop. Although the polarization state of the optical wave filter is switched by the electro-optic modulator in the loop, the device is independent of the polarization state of the input light due to the bi-directional polarization compensation of the Sagnac loop interferometer. This device can be used to achieve all-channel gating and odd/even-channel switching with fine channel selectivity and high speed response.

Citation Download Citation

Chang-Seok Kim, Young-Geun Han, Bernard Choi, John Stuart Nelson, and Jin U. Kang "Input polarization-independent multi-channel switching using cascaded long-period fiber grating and polarization-maintaining fiber", Proc. SPIE 5723, Optical Components and Materials II, (4 April 2005); https://doi.org/10.1117/12.589710

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