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| The TO-3 Adapter with Integrated TEC and Thermistor: ColdPack
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The only available TO-3 adapter for 9 mm and 5.6 mm laser diodes with integrated thermoelectric cooler.
- Adapter kit for 9 mm or 5.6 mm laser diodes
- Precise temperature stabilization and rapid cooling/heating
- Suitable for frequency tuning of DFB laser diodes
- Patented design
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The ColdPack adapter-kit adapts any standard 9 mm or 5.6 mm laser diode housing into a TO-3 style package with integrated thermistor and thermoelectric coolers.
For a variety of applications, simple heat sinking of a laser diode is not sufficient. In more severe cases full thermal control of the laser diode is required. However, standard laser diodes are mostly built into 9 mm (SOT-148) or 5.6 mm (TO-18 or MG) packages, and are not equipped with integrated coolers. To overcome this limitation, TOPTICA Photonics has designed its patented ColdPack adapter-kit; four thermoelectric elements serve to stabilize the laser temperature or rapidly cool/heat the diode, as is required by the application in mind.
The actual temperature can be monitored online by means of an integrated thermistor (10k NTC). The built-in laser diode can easily be exchanged. For ultimate temperature stability, we recommend to use the ColdPack in conjunction with our Diode Laser Temperature Control DTC 110, one of the controller modules of our DL 100 Diode Laser Series.
The ColdPack enables thermal shifting of the emission spectrum of a laser diode (typical temperature dependence of the wavelength of GaAs diodes: 0.3 nm per °C). When used in an external cavity configuration, the accessible wavelength range may thus be increased while maintaining continuous single-frequency operation of the laser. Moreover, the ColdPack lends itself for convenient frequency tuning of Distributed Feedback (DFB) laser diodes. |
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Exploded drawing of the ColdPack |
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| Contact |
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TOPTICA Photonics AG
Lochhamer Schlag 19
82166 Graefelfing (Munich)
Germany
T +49 89 85837-0
F +49 89 85837-200
TOPTICA Photonics Inc.
1286 Blossom Drive
Victor, NY 14564
USA
T 585.657.6663
F 877.277.9897
 sales@toptica.com
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