Scheduled System Maintenance:
Some services will be unavailable Sunday, March 29th through Monday, March 30th. We apologize for the inconvenience.
By Topic

Tunable Microwave Generation Using a Phase-Shifted Chirped Fiber Bragg Grating

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

The purchase and pricing options are temporarily unavailable. Please try again later.
4 Author(s)
Bo Lin ; Photonics Res. Centre, Nanyang Technol. Univ., Singapore, Singapore ; Meng Jiang ; Swee Chuan Tjin ; Ping Shum

We present a dual-wavelength single-longitudinal-mode erbium-doped fiber ring laser, incorporating a chirped fiber Bragg grating (CFBG) with a permanent π phase shift and a temporary π phase shift to form two passbands in the stopband of the grating. A thermal head induces the temporary phase shift which can move along the length of the CFBG to tune the position of the phase shift. This enables the wavelength spacing between the two passbands to be tunable thus allowing the microwave output frequency to be tunable when the two output lasing lines are heterodyned at the photodetector. Using this technique, microwave frequencies ranging from 6.88 to 36.64 GHz were obtained.

Published in:

Photonics Technology Letters, IEEE  (Volume:23 ,  Issue: 18 )