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  • ILA

Injection-locked amplifier (ILA)

02 Santec Moglabs Website 09 Chassis ILA 01

Description

New! Sr/Yb clock systems: 800mW at 461nm, >200mW @ 399nm

More power? See our Linear Cavity SHG systems: 1W at 461nm, 399nm

MOGLabs has developed new technology for stable injection locking of Fabry-Perot (FP) laser diodes. Injection locking has traditionally been plagued by extreme sensitivity to environmental drift: very small changes in temperature, alignment, or current can cause the amplifier diode to drift out of lock. We have developed an auto-tracking system that continually monitors the laser and makes tiny adjustments to the amplifier diode to maintain lock.

Combined with our stable seed lasers, the ILA delivers upto 1W@461nm (^) for Sr cooling and >200mW@399nm for Yb. These systems provide a compact and low-cost alternative to expensive SHG systems, with beam quality superior to that of TA systems.

We have demonstrated injection-locked systems at the following wavelengths with after isolator powers

  • 370nm/100mW (Yb+, 50mW ex-fibre)
  • 399nm/200mW (Yb, 100mW ex-fibre)
  • 461nm/800mW (Sr, 400mW ex-fibre)
  • 480nm/400mW (Rb Rydberg, 200mW ex-fibre)
  • 509nm/200mW (Cs Rydberg, 100mW ex-fibre)
  • 657nm/300mW (Ca clock, 150mW ex-fibre)
  • 689nm/300mW (Sr MOT, 200mW ex-fibre)
  • 698nm/300mW (Sr clock, 200mW ex-fibre)

The versatile platform offers many configurations; please contact MOGLabs for further information on this new cost-effective alternative.

(^) 800mW in amplified beam, 200mW in secondary seed pickoff

Auto-tracking injection locking

Maintains stable lock through continuous monitoring and real-time adjustment, ensuring reliable operation.

High coherence and beam quality

Delivers narrow-linewidth output with beam quality superior to typical tapered amplifier systems.

Cost-effective alternative to SHG systems

Access key wavelengths without the complexity and cost of nonlinear frequency conversion.

Optimised for atomic physics transitions

Demonstrated performance at key wavelengths used in Sr, Yb, and Rydberg experiments.

Features & Characteristics

  • Wavelength 369nm – 1080nm
  • Output power up to 1W, wavelength-dependent
  • High stability wire-cut flexure alignment with simple optimisation procedure
  • User-replaceable amplifier diode
  • Astigmatic correction

Applications

  • Laser cooling and trapping (Sr, Yb, Yb⁺)
  • Optical clock systems
  • Rydberg excitation experiments
  • Precision spectroscopy
  • Quantum optics

Options

  • Multiple stage optical isolation
  • Single-mode output fibre coupling
  • Dual amplified output beam option (free-space plus fibre-coupled)
  • Secondary free-space or fibre-coupled seed pickoff (e.g. for locking, monitoring of seed)
  • Integrated beam-shaping to reduce astigmatism
  • Compatible with MOGLabs LASRACK