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Temperature Controlled Mini-DIL Mount

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Temperature Controlled Mini-DIL Mount

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This technical note details results of preliminary temperature range and ramp testing on a special modification of the LDM-4982 mount. This mount is designed for increasingly popular high power mini-DIL packages. The laser chip is capable of quite high power output, dissipating as much as 1.4W (electrical) and needs adequate heat sinking to perform at rated power. Some mini-DIL (8-pin) packages are equipped with an internal thermistor. The mount is based on the LDM-4982 chassis, which is equipped with a 14-pin ZIF socket for DIL and mini-DIL lasers. Although the 4982 mount has a heat sink built in to the pedistal, the ZIF socket is plastic and does not afford any heat sinking when a mini-DIL package is mounted. The special mount incorporates a redesigned heat sink with a “diving board” projecting over the center of the ZIF socket.

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