Use of highly overcoupledcouplers to detect shifts in Braggwavelength
- 16 March 1995
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 31 (6) , 480-482
- https://doi.org/10.1049/el:19950292
Abstract
The authors present a technique for detecting Bragg wavelength shifts using highly overcoupled couplers (HOCC). An HOCC of 60%/nm was fabricated with 626 cycles. With our HOCC, a 5 µW LED and a 95% reflective Bragg grating we were able to detect 10 µstrain (Δλ = 0.01 nm).Keywords
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