| 摘要 |
In an optical transmitter, an input optical fiber delivers an optical signal to a fiber coupling modulator whose reflective surface is transformable in response to the data to be transmitted. In a first state of the modulator corresponding to a first data value, the reflective surface is flat and smooth. The optical signal, which may be a continuous-wave light, is reflected from the surface and efficiently coupled to an output fiber. In a second state of the modulator corresponding to a second data value, the reflective surface is controllably deformed to cause an aberration in reflecting the optical signal. As a result, a much reduced amount of light energy is coupled to the output fiber.
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