Title :
2×4 optical add-drop module with no difference in propagation length
Author :
Ho Nam Kwon ; Man Geun Kim ; Il-Han Hwang ; Young Kab Yun ; Seon-Ju Kim ; Jong-Hyun Lee
Author_Institution :
Gwangju Inst. of Sci. & Technol., South Korea
fDate :
4/1/2005 12:00:00 AM
Abstract :
We developed a micromachined X-type 2×4 optical add-drop module (OADM) featuring no difference in propagation length. Four pairs of lensed fibers are aligned in "X" position, and four micromirrors are located between the pairs of optical fibers. The OADM was fabricated utilizing a silicon-on-insulator process. Electrostatic comb actuators can be driven up to 90 μm to change the light path within 1 ms. The insertion loss and the on-off ratio were less than 3 and 70 dB, respectively. The loss uniformity in every channel was 1.5 dB.
Keywords :
electrostatic actuators; microlenses; micromachining; micromirrors; microswitches; optical communication equipment; optical fibre communication; optical fibre losses; optical switches; silicon-on-insulator; 1 ms; 1.5 dB; electrostatic comb actuators; insertion loss; lensed fibers; loss uniformity; micromachined optical switch; micromirrors; on-off ratio; optical add-drop module; optical fibers; propagation length; silicon-on-insulator process; Insertion loss; Lenses; Micromirrors; Optical add-drop multiplexers; Optical crosstalk; Optical fiber polarization; Optical fibers; Optical losses; Optical propagation; Optical switches; Add–drop module; X-type; lensed fiber; micromachined optical switch; propagation length difference;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2005.843694
