Tunable New Focus Velocity 6200 controller + 6226 diode laser (838-863 nm)

Description

This is a verified, working, complete system:
- New Focus Velocity 6200 External-Cavity Tunable-Diode-Laser Controller
- New Focus 6226 Tunable Diode Laser Head
- Controller-to-Laser Cables
- Power Cord
- Interlock Key
The laser is tunable from 838 nm to 863 nm in increments as small as 0.01 nm. We verified accuracy of the built-in power measurements at every wavelength in 1-nm increments using an external power meter (Thorlabs PM100D meter with S120VC head). Output power was verified to be ≥ 10 mW throughout the entire range; power as high as 16.5 mW was reached.
The controller has a wavelength tuning function, a diode and cavity temperature tuning function, a piezo function for fine wavelength adjustments, wavelength scan functions, diode current control to adjust power output, and a power measurement display. Additionally, the controller has connections for:
- Frequency Modulation Input (BNC)
- Current Modulation Input (BNC)
- Wavelength Output (BNC)
- Wavelength Input (BNC)
- Detector Input (BNC)
- Scan Trigger (SMB)
- IEEE 488 (parallel port)
- RS232 (serial port)
- interlock circuit