Vertical-cavity optical AND gate
نویسندگان
چکیده
We have demonstrated, the first time to our knowledge, a low-input intensity high-contrast (10:1) optical AND gate based on the differential gain (optical bistability) observed in an 850 nm GaAs vertical-cavity semiconductor optical amplifier (VCSOA). The input switching power is about 6 lW, which equals to the intensity of 16 nW=lm. It is about 2 orders of magnitude lower than in in-plane semiconductor optical amplifiers. In the experiment the device also shows an optical gain of 10 dB. 2003 Elsevier Science B.V. All rights reserved. PACS: 42.79.Ta; 42.65.Pc; 42.60.Da; 85.60.Jb
منابع مشابه
Optical AND operation based on Vertical-Cavity Semiconductor Optical Amplifiers (VCSOAs)
We have demonstrated, the first time to our knowledge, a low input intensity (16nW/μm) high contrast (10:1) optical AND gate based on a VCSOA. In the experiment the device also shows an optical gain of 10dB. © 2003 Optical Society of America OCIS codes: (190.1450) Bistability; (200.4660) Optical logic
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