Transmitter optical sub-assembly (TOSA) structure and an active alignment method thereof
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United States of America Patent
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Jun 7, 2022
Grant Date -
Nov 25, 2021
app pub date -
May 21, 2020
filing date -
May 21, 2020
priority date (Note) -
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Abstract
A transmitter optical sub-assembly (TOSA) structure having an independent upward heat dissipation path for dissipating heat in an upward direction including an independent signal source, an LDU assembly including a laser diode emitting a plurality of optical signals, a cascade LDU holding the laser diode, a lens positioned in front of the laser diode on the cascade LDU and an optical bench assembly including an optical bench assembled on a photonic integrated circuit having a plurality of passive optical components assembled on the optical bench. In particular, the independent signal source, the laser diode and the cascade LDU, are independent from the plurality of passive optical components on the photonic integrated circuit.
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