Compare Model Drawings, CAD & Specs Availability Price
VA-BB-1
Manual Variable Attenuator, Ultrafast, 400 - 700 nm
$5,324
In Stock
 VA-BB-1 Manual Variable Attenuator, Ultrafast, 400 - 700 nm
In Stock
 $5,324
VA-BB-1-CONEX
Motorized Variable Attenuator, Ultrafast, 400 - 700 nm
$6,689
3 Weeks
 VA-BB-1-CONEX Motorized Variable Attenuator, Ultrafast, 400 - 700 nm
3 Weeks
 $6,689
VA-BB-2
Manual Variable Attenuator, Ultrafast, 690 - 1040 nm
$5,324
In Stock
 VA-BB-2 Manual Variable Attenuator, Ultrafast, 690 - 1040 nm
In Stock
 $5,324
VA-BB-2-CONEX
Motorized Variable Attenuator, Ultrafast, 690 - 1040 nm
$6,689
In Stock
 VA-BB-2-CONEX Motorized Variable Attenuator, Ultrafast, 690 - 1040 nm
In Stock
 $6,689
VA-BB-3
Manual Variable Attenuator, Ultrafast, 1000 - 1600 nm
$5,324
Contact Us
 VA-BB-3 Manual Variable Attenuator, Ultrafast, 1000 - 1600 nm
Contact Us
 $5,324
VA-BB-3-CONEX
Motorized Variable Attenuator, Ultrafast, 1000 - 1600 nm
$6,689
In Stock
 VA-BB-3-CONEX Motorized Variable Attenuator, Ultrafast, 1000 - 1600 nm
In Stock
 $6,689
VA-BB-4
Manual Variable Attenuator, Ultrafast, 650 - 1350 nm
$5,324
Contact Us
 VA-BB-4 Manual Variable Attenuator, Ultrafast, 650 - 1350 nm
Contact Us
 $5,324
VA-BB-4-CONEX
Motorized Variable Attenuator, Ultrafast, 650 - 1350 nm
$6,689
In Stock
 VA-BB-4-CONEX Motorized Variable Attenuator, Ultrafast, 650 - 1350 nm
In Stock
 $6,689

Specifications

  • Attenuation Range
    Tp > 92%, polarized input, with broadband AR coating
    (VA-BB-4: Tp > 85%, polarized input, with uncoated polarizer)
  • Extinction Ratio
    Tp/Ts > 500:1, 1000:1 average
  • Damage Threshold
    500 W/cm2 CW, 2 J/cm2 with 8 nsec pulses at 1064 nm, typical
  • Clear Aperture
    10 mm

Features

Manual Broadband Ultrafast Variable Attenuators

The manual versions of the VA-BB series come with a manual rotary stage containing the half-waveplate. The user manually rotates the stage to control attenuation.

CONEX Motorized Broadband Ultrafast Variable Attenuators

The motorized versions of the VA-BB series come with a motorized rotary stage containing the half-waveplate. Software is included which allows the user to calibrate the VA-BB at a single wavelength. The motorized version can be used in open- or closed-loop operation.

Motorized, Variable Beam Splitter (Post and post holder sold separately)

Compact Industrial Housing

The optics and high-precision opto-mechanics are incorporated into a compact housing, flexibly designed for post mounting at varying optical axis heights. P-polarized light is transmitted with minimal loss collinear to the input beam path while S-polarized light is rejected into a beam dump on the side of the housing. M-4 and 8-32 threads are included on the bottom and one side of the housing for mounting on optical posts. This allows for horizontally or vertically polarized output.

Zero-order Half-waveplate & Glan-laser Polarizer Design

The VA-BB series is based on zero-order half-waveplates and Glan-laser polarizers. For more detail on the principle of operation of these devices, please refer to our Variable Attenuator for Lasers application note. These attenuators are designed to handle average powers up to 100 Watts for wavelength ranges of 400-700 nm, 690-1040 nm, 650-1350 nm or 1000-1600 nm.

Resources