| 摘要 |
Disclosed is a bidirectional optical transmitting and receiving device which includes a bottom case; a sidewall case; an upper case; a thermoelectric cooler provided on a first portion of the bottom case; a temperature sensor, a light emitting element, and a first lens collecting light emitted from the light emitting element, the temperature sensor, the light emitting element, and the first lens formed over the thermoelectric cooler; a second lens contacting with the exterior via the sidewall case; a filter transmitting light propagated from the first lens to the second lens and reflecting light propagated from the second lens; a third lens coupled with a lower surface of the filter and collecting light reflected from the filter; a light receiving element provided on a second portion of the bottom case and receiving light propagated from the third lens to output an electric signal; a pre-amplifier provided on the second portion and amplifying the electric signal from the light emitting element; and a support formed on the second portion and supporting the filter.
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