d2:dbr_laser
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d2:dbr_laser [2017/10/12 00:39] – [Inputs, Outputs, and Controls] Michael Radunsky | d2:dbr_laser [2019/09/24 21:23] – [Inputs, Outputs, and Controls] Michael Radunsky | ||
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|Stage 2 Temperature of DBR Laser Diode|> | |Stage 2 Temperature of DBR Laser Diode|> | ||
|Laser Diode Current|See datasheet included with your laser.| | |Laser Diode Current|See datasheet included with your laser.| | ||
+ | </ | ||
+ | |||
+ | <WRAP center round important 60%> | ||
+ | The laser should never be operated at a temperature below the dew point temperature for your laboratory conditions. | ||
</ | </ | ||
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- | =====Inputs, Outputs, and Controls===== | + | =====Laser Control Signals===== |
+ | <WRAP center round box 60%> | ||
+ | | {{ : | ||
- | **Vertical and horizontal pointing ** | + | </WRAP> |
- | + | ||
- | The vertical and horizontal alignment of the laser system is factory set and should not need adjustment. | + | |
- | + | ||
- | + | ||
- | < | + | |
- | {{ : | + | |
- | + | ||
- | </imgcaption> | + | |
- | + | ||
- | + | ||
- | **Beam Conditioning** | + | |
- | + | ||
- | The collimation of the output beam is set at the factory and should not be adjusted unless absolutely necessary. | + | |
- | + | ||
- | Laser diodes all have astigmatism, | + | |
- | + | ||
- | The far-field pattern is the most important for ascertaining the quality of the diode output. | + | |
- | **Cable Connector** | + | ==== Cable Connector |
- | The connections to the TECs and thermisters | + | The connections to the TECs and thermistors |
<WRAP center round box 300px> | <WRAP center round box 300px> | ||
+ | < | ||
^ Pin ^ Signal | ^ Pin ^ Signal | ||
| 1 | TEC1+ | | | 1 | TEC1+ | | ||
Line 107: | Line 97: | ||
| 7 | Rth2 | | | 7 | Rth2 | | ||
| 8 | Rth2-RTN | | 8 | Rth2-RTN | ||
+ | </ | ||
</ | </ | ||
<WRAP round center box 320px> | <WRAP round center box 320px> | ||
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NOTE: Earlier models use a push-pull connector for the 8-pin connector to the DBR module. | NOTE: Earlier models use a push-pull connector for the 8-pin connector to the DBR module. | ||
- | **Laser Current (SMA)** | + | ==== Laser Current (SMA) ==== |
<WRAP center round important 60%> | <WRAP center round important 60%> | ||
Never connect or disconnect the D2-100 Laser to a laser controller that is energized. | Never connect or disconnect the D2-100 Laser to a laser controller that is energized. | ||
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- | =====Aligning the DBR Laser Module===== | ||
- | |||
- | The module should not need adjustments, | ||
- | - Loosen the three locking screws on the back of the DBR module ½ turn past the crack point. | ||
- | - With a 0.050" Allen driver, adjust the vertical adjustment setscrew on the top of the DBR housing to level the beam. | ||
- | - Adjust the horizontal adjustment 4-40 set screw on the left side of the DBR housing (See <imgref DBR_lock_screws> | ||
- | - Alternatively, | ||
- | - Gently retighten the three locking screws. | ||
d2/dbr_laser.txt · Last modified: 2024/03/29 22:18 by Thomas Bersano