Title :
High performance fused-type mode-selective coupler using elliptical core two-mode fiber at 1550 nm
Author :
Song, Kwang Yong ; Hwang, In Kag ; Yun, Seok Hyun ; Kim, Byoung Yoon
Author_Institution :
Dept. of Phys., Korea Adv. Inst. of Sci. & Technol., Taejon, South Korea
fDate :
4/1/2002 12:00:00 AM
Abstract :
In this letter, we demonstrate a high performance fused-type mode selective coupler that couples the LP/sub 11/ mode in one fiber and the LP/sub 01/ mode in another using highly elliptical core two-mode fibers. The phase-matching condition was achieved by etching and prepulling portions of two-mode fibers. The coupling efficiency and the mode extinction ratio of 56% to 80% and 22-32 dB, respectively, were achieved with high temperature stability over 1515- to 1595-nm wavelength range.
Keywords :
etching; optical fibre couplers; optical fibre fabrication; optical phase matching; thermal stability; 1515 to 1595 nm; 1550 nm; 56 to 80 percent; LP/sub 01/ mode; LP/sub 11/ mode; elliptical core two-mode fibers; etching; fused-type mode selective coupler; high temperature stability; mode coupling efficiency; mode extinction ratio; phase-matching condition; prepulling; Extinction ratio; Frequency conversion; Optical coupling; Optical fiber communication; Optical fiber couplers; Optical fiber devices; Optical fiber filters; Optical frequency conversion; Optical sensors; Stability;
Journal_Title :
Photonics Technology Letters, IEEE
