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785nm Laser Diode, 100mW, Wavelock™ Turn-Key Module
- 50 GHz Linewidth
- Free-Space Output
- Fiber-Coupled Option

  • Lambda Wavelock Wavelength Stabilized Laser Diode Raman
  • Lambda Wavelock Laser Diode Wavelength Stability
  • Lambda Wavelock Wavelength Stabilized Laser Diode GUI Software
  • Lambda Wavelock Wavelength Stabilized Laser Diode Power Supply Options
  • 785nm-100mw-laser-diode-infographic
  • Lambda Wavelock Wavelength Stabilized Laser Diode Spectroscopy Accessories

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sku / item#: RLS/VHG-785NM-100MW-50GHz
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Key Features
  • User Adjustable Output Power up to 100 mW
  • Coherence Length > 0.6 cm
  • Ultra-High Wavelength Stability: < 0.015 nm
  • Temperature Stability: < 10 mK
  • Optimized for Raman Spectroscopy Applications
  • USB Interface with Control GUI / Software Included
  • Includes PowerController Power Supply Unit
  • Offered by RGB Photonics, a Laser Lab Source Marketplace Seller
  • Sold & Supported in North America by: LaserDiodeSource.com, part of the
    Laser Lab Source Marketplace Group
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MODEL RLS/VHG-785NM-100MW-50GHz
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Key Specifications
  • User Adjustable Output Power Range: 0 – 100 mW
  • Wavelength: 785 nm ±1 nm
  • Power Stability: <1% (10 hours)
  • Linewidth: < 50 GHz / 0.1 nm
  • Coherence Length: > 0.6 cm
  • Beam Diameter (mm): 1.1 × 2.2 to 1.2 × 2.8
  • Beam Divergence: < 1.2 mrad
  • Beam Alignment: < 5 mrad und < 0.1 mm (compared to base mount)
  • Beam Mode: TEM00
  • Polarization: Linear > 100:1 (typ)
  • Pointing stability: < 5 µrad/K
  • Temperature Control Accuracy: < 10 mK
  • Warm-Up Time: 5 seconds
  • Modulation: Analog & Digital External Modulation DC to 1.5 MHz
  • Modulation Input: 0 – 5 V
  • Drive Mode: Active Current Control (ACC)
General
  • Power: 12 – 36 VDC, up to 2 A
  • Operating temperature 0 °C to 45 °C (non-condensing)
  • CDRH Classification: 3b
  • Digital Interface: USB (RS-232 Optional)
DIMENSIONS AND WEIGHT
  • Laser Head Dimensions (mm): 63.5 × 31.0 × 32.5
  • Weight: 94 g
  • Refer to Datasheet for PowerController Dimensions and Weight
USER CONTROL MODES (BY USB):
  • Laser Output Power Set-Point (User Adjustable)
  • Laser Temperature Set-Point (User Adjustable)
  • External Modulation

Product Overview:

785nm, 100mW, 50 GHz Linewidth Wavelock™ Laser Diode Module Overview

The WAVELOCK™ series laser diode modules are stabilized using a VHG, volume holographic grating. The WAVELOCK™ VHG provides exceptional wavelength stability and a narrowed spectral bandwidth for the most demanding Raman spectroscopy and analytical instrumentation applications. The volume holographic grating functions as an external cavity that locks the laser diode’s wavelength and provides a narrow emission output. The PowerController low noise current source has been optimized to provide the highest levels of power stability.

Optimized for Laser Output Stability

    • WAVELOCK™ VHG stabilized laser diode source offers industry leading wavelength and power stability
    • Optimized for Raman Spectroscopy applications
    • Integrated precision temperature stabilization & low noise current source help provide exceptional optical stability
    • Wavelength stability < 0.015nm
    • Power stability < 1%
    • High power and long coherence length

Versatile Power Supply Options

The Lambda Beam WAVELOCK™ VHG laser head requires a laser controller to provide power and control all operating parameters; this model includes the PowerController module. (For industrial integration we also offer the highly compact PowerController to be directly attached to the laser head or connected via a customized cable.)

Optional Accessories Available to Suit Your Application

    • Beam diameter correction
    • Polarization > 10 000 : 1
    • Opto-mechanical shutter
    • Diode wavelength selection
    • Water cooling base plate
    • Remote control RC-1 for Power Controller
    • RS-232 interface
    • Fiber coupler

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