UV-written long-period waveguide grating coupler for broadband add/drop multiplexing

✍ Scribed by C.K. Chow; K.S. Chiang; Q. Liu; K.P. Lor; H.P. Chan

• Book ID: 103874003
• Publisher: Elsevier Science
• Year: 2009
• Tongue: English
• Weight: 390 KB
• Volume: 282
• Category: Article
• ISSN: 0030-4018
• DOI: 10.1016/j.optcom.2008.10.007

✦ Synopsis

We demonstrate a UV-written polymer long-period waveguide grating (LPWG) coupler, which offers a bandwidth of 20 nm, a maximum coupling efficiency of 80% and 60% for the TE and TM polarizations, respectively, and a wavelength-tuning range over the (S + C + L)-band (140 nm) with a temperature control of 25 °C. The LPWG coupler has the potential to be developed into a practical broadband add/drop multiplexer for coarse wavelength-division-multiplexing applications.