Title :
A novel all-optical switch: the wavelength recognizing switch
Author :
Zhu, Daniel X. ; Dubovitsky, Serge ; Steier, William H. ; Uppal, Kushant ; Tishinin, Denis ; Burger, Johan ; Dapkus, P.Daniel
Author_Institution :
Dept. of Electr. Eng., Univ. of Southern California, Los Angeles, CA, USA
Abstract :
A new class of an all-optical switch-the wavelength recognizing switch is proposed and experimentally demonstrated. The device uses a control signal to sense the wavelength of the input packet and taps a portion of the data packet to the appropriate output port. The device is based on noncollinear four-wave mixing in a broad-area traveling-wave semiconductor optical amplifier. Measured switching efficiency is +8.2 dB with -28.8 dB of crosstalk. The recognition bandwidth is as narrow as 0.03 /spl Aring/ and the 3-dB switching bandwidth is 42 nm.
Keywords :
multiwave mixing; optical crosstalk; optical switches; packet switching; photonic switching systems; semiconductor lasers; travelling wave amplifiers; all-optical switch; broad-area traveling-wave semiconductor optical amplifier; control signal; crosstalk; input packet wavelength sensing; noncollinear four-wave mixing; packet switched optical communication; recognition bandwidth; switching bandwidth; switching efficiency; wavelength recognizing switch; Bandwidth; Communication switching; Gratings; Nonlinear optics; Optical amplifiers; Optical packet switching; Optical switches; Packet switching; Semiconductor optical amplifiers; Stimulated emission;
Journal_Title :
Photonics Technology Letters, IEEE
