Design of high finesse, wideband Fabry-Perot filter based on chirped fiber Bragg grating by numerical method

Xindong Peng; Chandrasekhar Roychoudhuri

doi:10.1117/1.602569

1 July 2000 Design of high finesse, wideband Fabry-Perot filter based on chirped fiber Bragg grating by numerical method

Xindong Peng, Chandrasekhar Roychoudhuri

Author Affiliations +

Optical Engineering, Vol. 39, Issue 7, (July 2000). https://doi.org/10.1117/1.602569

The spectral characteristics of a Fabry-Perot spectrometer (filter) formed by a pair of identical linearly chirped fiber Bragg gratings in optical fiber are studied numerically using the characteristic matrix method. The results indicate that based on available techniques and materials, one can fabricate such filters with a finesse as high as 104 and contrast as high as 109 by inscribing a pair of identical linearly chirped fiber gratings. Achieving such superfinesse and contrast in a conventional Fabry-Perot (FP) is very difficult because of fabrication complexities in achieving superflatness at ultrahigh reflectivities simultaneously and keeping them aligned. Our numerical simulation also indicates that the spectral characteristics of the fiber FP (FFP) filter can be approximated by that of a classical plane mirror FP (PFP) with a mirror separation of L + ?L, where L is the length of any one of the two gratings and ?L is the separation between the two gratings. This analogous characteristic enables one to estimate time domain and other behavior of an FFP from already established PFP analysis. Thus, miniature FFPs can be used not only to achieve ultralow, crosstalk in wavelength division multiplexing (WDM), but they can also be integrated into miniature, hybrid, spectral sensors (such as Brillouin and Raman sensors) where ultrahigh contrast with superresolution is required.

Citation Download Citation

Xindong Peng and Chandrasekhar Roychoudhuri "Design of high finesse, wideband Fabry-Perot filter based on chirped fiber Bragg grating by numerical method," Optical Engineering 39(7), (1 July 2000). https://doi.org/10.1117/1.602569

Published: 1 July 2000

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