Single-pass AOM

Single-Pass AOM Cluster 1 ⇾ x

Compact, rugged and highly efficient opto-mechanical unit for amplitude modulation of light with a fixed frequency shift.

Features

Single-Pass AOM Cluster with one modulator 
  • AOM center frequencies of 60-220 MHz
  • High Laser Powers suitable due to free space AOM integration
  • Highly efficient coupling into polarization-maintaining fiber cables
  • Compact, rugged, transportable and sealed opto-mechanical units
  • Fully fiber-coupled
  • Very high long-term stability, efficiency and reproducibility
  • Optional subsequent beam splitting with adjustable splitting ratio
  • Optional attenuators and shutters
  • Optional photo diodes

Description

Single-Pass AOM Clusters are versatile opto-mechanical units that enable amplitude modulation of laser light with high bandwidth. These setups can be combined with beam splitters, monitor diodes, shutters and other established multicube™ components.io.

Optical Setup
The input port is fiber-coupled to a PM fiber cable. A photo diode right after the input port allows for continuous monitoring of the input laser power. The AOM diffracts the incident light and induces a frequency shift and diffraction efficiency determined by the applied radiofrequency signal. The diffracted light can be used for 1 to x output ports or can be combined with light from a second Single-Pass AOM or Double-Pass AOM Cluster.
 
Acousto-optic Modulators
The acousto-optic modulators form the centerpiece of all Integrated AOM Systems. As modulators we integrate purchased AOMs (e.g. MT-Series from AA Optoelectronics, AOMO-Series from Gooch & Housego as well as corresponding modulators from other manufacturers with a similar form factor). The achievable modulation bandwidth is determined by the rise time of the AOM as well as the laser beam diameter. 
 
Fiber Couplers
A fundamental component of a Single-Pass AOM Cluster is the Laser Beam Coupler, which is the input into the opto-mechanical unit collimating the input radiation and, finally, couples the radiation back into the polarization-maintaining fiber cables. The stability of the Single-Pass AOM Cluster is determined by the stability of the laser beam coupler.
 
How to Order
  • Wavelength
  • Maximum input laser power
  • Center Frequency (AOM) 
  • Cable lengths
  • Connector types