Document Type
Article
Rights
Available under a Creative Commons Attribution Non-Commercial Share Alike 4.0 International Licence
Abstract
A low polarization-sensitive all-fiber wavelength measurement system using a twisted macro-bend fiber edge filter together with polarization-insensitive (PI) 3-dB coupler is presented. Eliminating the polarization-dependent loss (PDL) is essential when macro-bending single-mode fiber is utilized as an edge filter. A new bending configuration to eliminate the PDL of a fiber edge filter is proposed in this letter by twisting the fiber by 90deg between two bending sections with equal length. The PDL of this configuration retains a low value even while the bending length is increased to achieve a steeper response for the edge filter. This configuration together with a PI 3-dB coupler makes the system to have very low polarization sensitivity and as a result high wavelength accuracy can be achieved.
DOI
https://doi.org/10.1109/LPT.2008.927899
Recommended Citation
Rajan, G., Semenova, Y., Farrell, G., Wang, Q., Wang, P.: A low polarization sensitivity all-fiber wavelength measurement system. IEEE Photonics Technology Letters, 2008, Vol.20, no. 17, pp.1464-1466. doi:10.1109/LPT.2008.927899
Publication Details
In IEEE Photonics Technology Letters, 2008, Vol.20, no. 17, pp.1464-1466. Digital Object Identifier: 10.1109/LPT.2008.927899 http://0-ieeexplore.ieee.org.ditlib.dit.ie/stamp/stamp.jsp?tp=&arnumber=4589016&isnumber=4585415