Abstract

Theoretical and experimental studies of wavelength-division multiplexing in a single-mode fiber optic coupler fabricated by mechanical polishing are reported. The variable spacing geometry of the device allows fine tuning of the center wavelength of operation. Wavelength selectivities ranging from 200 to 35 nm have been experimentally demonstrated, with cross talk ranging from 50 to 10 dB. Selectivity control is simply achieved by proper choice of the interaction length of the coupler. The dependence of the multiplexer behavior on all relevant parameters is investigated and found to satisfy predicted results.

© 1983 Optical Society of America

Single-mode-fiber 1 × N directional coupler

S. A. Newton, J. E. Bowers, G. Kotler, and H. J. Shaw
Opt. Lett. 8(1) 60-62 (1983)

Precise control of the center wavelength of a wavelength-selective single-mode-fiber–thin-film directional coupler

Alok K. Das and Amar K. Ganguly
Appl. Opt. 34(30) 6911-6914 (1995)

Magnetically controllable wavelength-division-multiplexing fiber coupler

Wei Lin, Hao Zhang, Binbin Song, Yinping Miao, Bo Liu, Donglin Yan, and Yange Liu
Opt. Express 23(9) 11123-11134 (2015)

All-fiber optical add–drop multiplexer based on a selective fused coupler and a single fiber Bragg grating

Beatriz Ortega, Liang Dong, and Laurence Reekie
Appl. Opt. 37(33) 7712-7717 (1998)

Dual GRIN lens wavelength multiplexer

B. D. Metcalf and L. Jou
Appl. Opt. 22(3) 455-459 (1983)