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Six Channel High Power 1550nm Laser Diode Source System; 5 Watts of Output Power per Channel

  • 1550nm 6-Channel DFB Laser Source Front Panel
  • 1550nm 6-Channel DFB Laser Source Back Panel

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sku / item#: RLS/LDX-1550NM-5W
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Key Features
  • Six Channel High Power 1550nm Laser Diode System Optimized for High Power Optical Amplifier, Optical Fiber, and Component Testing Applications
  • Independent Adjustable Output Power, 0 to 5 Watts per Channel
  • SMA-905 Fiber Coupled Outputs, Backpanel Located
  • Independent Peltier (TEC) Cooled Mounting Plates for Each Laser Diode Channel
  • All Channels Communicate Over Isolated RS-232 Interfaces; USB Control Available as an Option
  • Offered by OsTech, a Laser Lab Source Marketplace Seller
  • Sold & Supported in North America by: LaserDiodeControl.com, part of the
    Laser Lab Source Marketplace Group

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Laser DIODE and Fiber Specifications (typical @ 25°C)
  • Number of Laser Diode Outputs per System: 6 Separate Outputs
  • Laser Diode Center Wavelength (each channel): 1550 nm (+/-20 nm)
  • Laser Diode Adjustable Output Power (each channel): 0 to 5 Watts
  • Wavelength Temperature Tuning: 0.55 nm / °C
  • Fiber Termination: SMA905 (six rear panel outputs)
  • Fiber Numeric Aperture (NA): 0.22
  • Fiber Core Diameter: 200 µm
  • Detachable Fiber: 6 x Rear Panel Outputs
  • Laser Diode Spectral Line Width (FWHM, typical, 3 dB): 10 nm
  • Soft-Start Current Ramp to Setpoint (User Programmable)
  • Soft-Start Current Ramp Factory Default Set to 300 Milliseconds
  • Factory Pre-Set Maximum Current Limit
  • Factory Pre-Set Upper Temperature Limit
  • ESD and Power Surge Clamp
  • Reverse Voltage Transient Clamp
  • AC Line Filter
  • Keylock Switch and Safety Interlock
  • Short Circuit when Laser Diode Current Turned OFF
  • Front Panel e-Stop Button Emergency Shut-Down
  • Factory Pre-Set Upper Temperature Limit
  • Open Circuit Detection and Fast Shut-Down
SIX CHANNEL CONTROL UNIT TEMPERATURE CONTROLLER and TEC cooled laser diode mounting plate Specifications
  • Cooling Design: Peltier (TEC) Cooled Laser Diode Mounting Plate
  • Laser Diode Mounting Plate Material: Nickel Plated Copper
  • Laser Diode Mounting Plate Thermal Resistance: < 0.06 K/W
  • TEC Controller Output Power Total: 128 Watts
  • TEC Controller Output Current Range (bipolar): ± 7.00 Amps
  • TEC Controller Output Voltage Range (bipolar) : ± 16.00 Volts
  • Laser Temperature Setpoint: User Adjustable within Factory Pre-Set Range (Upper Limit Pre-Set to Protect Laser)
  • TEC Control Loop Algorithm: Full P.I.D.
  • P.I.D. Variables: Factory Pre-Set for Optimum Performance
  • Temperature Control Accuracy: 0.05°C
  • TEC Controller Setpoint Resolution: 0.01°C
  • Laser Diode Upper & Lower Temperature Limits: Factory Pre-Set
  • Control Unit Waste Heat Removed by Fan
  • Per Channel QCW Pulse Rise and Fall Time: < 20 μs to CW (< 10 μs on request)
  • Per Channel QCW Trigger: Internal Function Generator or External Trigger
  • Per Channel QCW Pulse Modes: Continuous Pulses, Single Pulses, Bursts
  • Per Channel Pulse Time Base Accuracy: ± 1.0%
  • MODULATION Signal: Accepts External Digital (TTL) or Analog
  • MODULATION Input Connetor: BNC, Input Impedance 10K ohm
  • MODULATION Input Voltage Range: 0 ~ 4 Volts (4V = Max Current)
System Dimensions and Power Requirement
  • System Height: 5U (5 Standard Rack Units Height)
  • System Depth: 340 mm
  • System Width: 483 mm (1 Standard 19 Inch Rack Unit Width)
  • Input Power: Universal 100V ~ 230 VAC, 50/60Hz
  • Includes Front Panel Mounting Brackets and Bottom Panel Feet
  • System Weight: 23.5 kg
Six Channel Mainframe User Interface
  • RS232 Standard, LabView Drivers Included
  • USB Interface Optional; Inquire for Details
  • Terminal Control Software Program Included

Product Overview:

6 Channel High Power 1550nm Laser Diode System for Component and High Power Optical Amplifier Testing

The model LDX-1550NM-5W is a completely integrated, turn-key six channel laser diode source and control system for testing applications. These pre-configured 5 Watt multi-channel instruments give the user full control over the integrated laser diode. Each fiber coupled laser diode is mounted to a TEC / Peltier cooled mounting plate inside the six channel instrument.

Laser output power is set by adjusting the current level (ACC mode) or adjusting the laser in automatic power (APC) control mode. The APC mode utilizes the laser diode's internal monitor photo-diode to feedback to the bias current and temperature controller.

These all-inclusive instruments include the 5 watt laser diodes (fiber coupled rear panel output), six precision current sources to bias the laser diodes, high power TEC controllers to stabilize the temperature and a TEC / Peltier cooled mounting plate for each laser diode.

Factory Configured Protection Settings for the Laser Diode

The LDX series instruments ship with factory configured protection settings to make sure that the integrated laser diode is run safely and operates within the specified maximum operating limits. These limits include the upper current limit and upper temperature limit. Additionally, a soft-start current ramp is set to 300 milliseconds to protect the laser from thermal shock when the bias current is applied. This soft-start ramp time can be customer configured through the front panel or digital interface. These units also have clamping circuitry to protect the laser against power surges and ESD.

Peltier Based Temperature Control System

These units have separate integrated TEC controllers with a full P.I.D. control loop to deliver fast and efficient heat removal from the laser diode source. Each laser diode is mounted to a Peltier cooled mounting plate of nickel plate copper. The internal mounting plates are machined with very high surface finish and flatness to provide low thermal resistance, typically less than 0.06 K/C. These laser diode mounting plates are attached to a fan cooled air duct to remove the waste heat and keep the laser temperature stable.

Soft-Start Current Ramp

In addition to the current the temperature limit protection settings, the LDX-1550NM-5W series laser diode source instruments give the user the option of setting the soft-start current ramp time from 300 milliseconds up to 10 seconds. This user adjustable current ramp allows you to customize the "power on" sequence of the source for your specific application.

User Controls

Users have full control of each fiber coupled laser module power through independent standard RS-232 interfaces and LabView drivers. The RS-232 ports can be daisy-chained, or a single master control channel can be assigned. The laser diode system can be ordered with an optional USB interface; inquire for details.

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