GV-680

The GV-680 is a high-performance 680 nm fiber-coupled laser system that integrates the laser diode, fiber-coupled optics, power supply, and temperature control into a single housing. It provides continuous-wave (CW) output powers from >1000 mW up to 2000 mW after fiber, with high stability, fast warm-up, and optional TTL or analog modulation.
Its air-cooled design, wide operating temperature range, and long expected lifetime make the GV-680 ideal for medical, biomedical, and industrial applications requiring precise and reliable near-infrared illumination.

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Features
  • 680 nm CW fiber-coupled laser
  • 1–2 W output after fiber
  • High stability (<1–3% rms)
  • TTL and analog modulation options
  • 200/400 μm MM fiber with SMA905 connector
Applications
  • Medical and biomedical illumination
  • Diagnostic imaging and instrumentation
  • Industrial alignment and inspection
  • Fiber-delivered excitation
  • OEM photonics systems
Specifications
Parameter Value
Wavelength 680 ± 5 nm
Operating Mode CW
Output Power (after fiber) >1000 mW, 1100 mW … up to 2000 mW
Power Stability (rms, 4 h) <3%, <2%, <1%
Fiber Core Diameter 400 μm / 200 μm (other diameters available on request)
Fiber NA 0.22
Fiber Connector SMA905
Fiber Length 1 m (custom lengths available)
Warm-up Time <5 minutes
Operating Temperature 10–35 °C
Input Power 100–240 VAC
Modulation Options TTL (1 Hz–30 kHz), analog optional
Cooling Method Air-cooled
Expected Lifetime 10,000 hours
Warranty 1 year