1 July 2001 Tunable chirped fiber Bragg gratings by a distributed heater
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Optical Engineering, 40(7), (2001). doi:10.1117/1.1382642
Abstract
We propose a new design for introducing a tunable chirp on a uniform fiber Bragg grating by a controllable temperature gradient. The device consists of an unchirped Bragg grating in a bare fiber that is mounted in a plastic sleeve whose surface is coiled with a length of wire heater. The desired temperature distribution produces a chirp on the grating and at a rate that can be adjusted by varying the current. We demonstrate an electrically tunable chirped fiber Bragg grating that enables a tuning range of an average chirp rate up to 0.93 nm/cm with an electrical power of 3.3 W. We also demonstrate a tunable chirped fiber Bragg grating in which dispersion is adjustable from -1632 to -667 ps/nm with an electrical power of less than 0.5 W.
Zhihao Chen, Chao Lu, Junhong Ng, Xiufeng Yang, Tee Hiang Cheng, "Tunable chirped fiber Bragg gratings by a distributed heater," Optical Engineering 40(7), (1 July 2001). http://dx.doi.org/10.1117/1.1382642
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KEYWORDS
Fiber Bragg gratings

Metals

Wavelength division multiplexing

Optical design

Head

Modulation

Reflection

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