Lexel 85 and 95 gas-ion lasers have a 25-year history of the highest quality and performance in the industry. The simple solid ceramic plasma tube design has proven its durability and stability in producing coherent laser light. This is the best value in a small frame (1-7 watt) gas-ion laser.

Applications

These lasers are designed for long, stable life in a variety of scientific and industrial applications.

  Scientific applications

  Industrial applications

  • Spectroscopy

  • Holography

  • Laser Doppler velocimetry

  • Ti:Sapphire/Dye laser pumping

  • Cytofluorescence

 

  • Non-destructive testing

  • Semiconductor processing

  • Disc mastering

  • OEM medical applications

General specifications

Lexel 85 and 95 lasers are available in three versions:

The condensed table below lists key specifications of these lasers. A separate page has a complete table, with detailed specifications of the 85/95 series.

Important: For all items below, the listed specifications represent the general performance of standard models. Individual specifications can often be optimized for specific applications. For example, custom laser wavelengths are available. Please contact Cambridge Lasers if you have any special requirements.
 

LEXEL 85/95 SERIES - WAVELENGTH AND POWER(selected lines only - click here for more lines)

  Argon Lasers Krypton Lasers
  
Version 		  
85 		  
95 		  
95L (longer) 		  
85 		  
95 		  
95L
    Model 85-1 95-2 95-3 95-4 95-5 95-6 95-7 85-K 95-K 95-K
  
Multiline Operation, power in watts
    All lines 1 2 3 4 5 6 7 .225 .75 1.5
  
Single Line Operation, power in milliwatts
    676.4 nm               50 150 300
    647.1 nm               100 500 1000
    514.5 nm 400 800 1200 1700 2100 2400 2600      
    488.0 nm 350 700 1000 1300 1600 1800 2000      
 


  

LEXEL 85/95 SERIES - BEAM PARAMETERS(selected parameters only - click here for details)

  
Version

  
85 		  
95 		  
95L
Beam diameter (@ 1/e2 points)
    514.5 nm TEM00 (Argon) 1.1 mm ≤ 1.3 mm ≤ 1.5 mm
    647.1 nm TEM00 (Krypton) 1.2 mm ≤ 1.3 mm ≤ 1.5 mm
Beam divergence3 (full angle)
    514.5 nm TEM00 (Argon) 0.7 mrad 0.6 mrad
    647.1 nm TEM00 (Krypton) 0.9 mrad 0.9 mrad
Amplitude power stability (1 hour period after 30 minute warm-up)
    Light Control ≤ ±0.2% ≤ ±0.2%
    Current Control ≤ ±2.0% ≤ ±3.0%
 


  

LEXEL 85/95 SERIES - OPERATIONAL AND DIMENSIONAL(selected specs only - click here for details)

  
Version 		  
85 		  
95 		  
95L
Optical resonator Solid Invar® rod structure
Electrical service requirements 220 VAC
Single phase
50/60 Hz 		208 VAC
3-phase Wye or Delta
50/60 Hz
Maximum current draw 30A 35A 50A
Cooling water flow 1.5 gpm at 15 psi
(5.6 liters/min at 1 Atm) 		2.0 gpm at 20 psi
(7.5 liters/min at 1.4 Atm)
Laser head, lengthClick here for dimensional drawing 34.3 in
(87.2 cm) 		41.5 in
(105.4 cm) 		50.0 in
(127.0 cm)

Specifications as of 6/2003. Subject to change without notice.


Power supply, head and tube

Lexel 85 and 95 lasers are CDRH-certified with all safety features. They come with a two-year/2,000 hour warranty.

Power supply
The power supply front panel contains all controls necessary to operate and fully monitor the laser system.

  • Linear low noise power supply

  • Current and light regulation

  • 0-10V external modulation

  • Panel mounted power meter

  • Automatic starting

  • Remote turn-on capability

Laser head
Within the laser head, an ultra-stable solid Invar® optical resonator holds the plasma tube and mirrors in precise alignment to produce coherent laser light.

  • Solid Invar® resonator

  • Temperature-compensated prism wavelength selector

  • Fine tuning capability

  • Multiline mirror holder for all lines operation

Laser tube
A simple and reliable plasma tube design. Lexel\'s solid ceramic plasma tube design has been proven since 1972, while other ion laser manufacturers have tried and abandoned several designs in an attempt to match Lexel\'s stability and performance. In fact, a majority of the more than 18,000 Lexel plasma tubes still operate today, some with 20,000 hours of use.

  • Sealed intracavity spaces

  • Free-flow gas supply

  • High-efficiency solid ceramic plasma tube

Standard features

Current and light regulationThe Lexel 85 and 95 lasers can be operated in current or light control:

n Current regulation allows direct control of the current through the plasma tube via an external source.

n Light regulation provides the ultimate in laser output stabilization. A small portion of the light is sampled within the laser and compared to a reference signal in a differential circuit that automatically adjust the laser current to maintain a constant output.
     This feature also allows for the light level to be modulated externally with a ± 10 volt signal.

Model 500 Temperature-Compensated Prism Wavelength Selector Stable single line operation is achieved by Lexel ion lasers with the Model 500 prism wavelength selector. A full Brewster prism is utilized to achieve good separation of even the most closely spaced lines.

Model 502 Multiline Mirror HolderThis assembly holds the high reflector mirror for Multiline operation. This feature may be substituted for the Model 500 wavelength selector.

Fine tuning 
The laser is aligned accurately with the use of fine tuning knobs.

Remote turn on This feature permits the laser power supply to be turned on and off and the plasma tube to be started remotely.

Automatic startingThis circuit automatically starts the plasma tube approximately 20 seconds after the power supply is turned on.


Panel-mounted power meterThis multirange power meter continuously displays the output power of the laser.