1 x N-2 wavelength-selective switch with two cross-scanning one-axis analog micromirror arrays in a 4-f optical system
JOURNAL OF LIGHTWAVE TECHNOLOGY, cilt.24, sa.2, ss.897-903, 2006 (SCI-Expanded)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 24 Sayı: 2
- Basım Tarihi: 2006
- Doi Numarası: 10.1109/jlt.2005.861915
- Dergi Adı: JOURNAL OF LIGHTWAVE TECHNOLOGY
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.897-903
- Anahtar Kelimeler: microelectromechanical devices, optical components, optical fiber switches, wavelength division multiplexing
- Abdullah Gül Üniversitesi Adresli: Hayır
Özet
A new high-port-count wavelength-selective switch (WSS) has been realized using two cross-scanning one-axis analog micromirror arrays in a 4 - f optical system. The number of output ports is increased from N to N-2, where N is the maximum linear port count limited by optical diffraction. Using surface-micromachined micromirrors with hidden vertical comb drives, large scan angles (> +/- 5 degrees mechanical), low drive voltages (7 V), and high fill factors (> 96.25%) are achieved for both scanning mirrors. Experimental results for WSS are demonstrated using both two-dimensional (2-D) array of discrete collimators and monolithic 2-D collimator array. A fiber-to-fiber insertion loss ranging from 6 to 18 dB and a switching time of < 700 mu s have been achieved.