CEP Stabilization
KMLabs is the acknowledged world leader in Carrier Envelope Phase (CEP) stabilization of high peak and average power ultrafast amplifier systems.
Our CEP systems have been optimized to enable KMLabs to provide the highest performance CEP systems to our customers. Over the past three years, a KMLabs initiative has been carried-out to develop a comprehensive understanding of CEP. Through this program we have systematically identified many different effects that are subtle, but nonetheless key to achieving a high-quality long-term CEP-lock.
KMLabs has commercial high-power CEP-stabilized
amplifier products based on Dragon™ and
RedDragon™ platforms. Examples of
KMLabs CEP-stabilized amplifier products installed at customer
laboratories worldwide include:
•
2mJ @ 1kHz
•
3.5mJ @ 3kHz
•
6.0mJ @ 1kHz
•
14mJ @ 1kHz
Pulse durations for these various systems range between 23 and 29
fs. Some of these systems operate in very non-ideal laboratory
conditions, yet still with excellent stability.
KMLabs is currently manufacturing significantly higher power CEP systems for several customers.
The Dragon™ uses cryogenic cooling of the Ti:sapphire crystal to avoid thermal lensing effects of the amplification crystal and allow scaling to very high average power. KMLabs has successfully addressed potential vibration issues of closed loop cryogenic coolers by implementing custom cryo-cooling systems. KMLabs careful vibration isolation design allows us to CEP stabilize all cryo-cooled amplifier systems.
The Dragon™ and RedDragon™ systems employ “conventional” (dispersion-optimized) grating-based stretchers and compressors. This avoids B-integral induced distortions of the beam’s spatial and temporal profile by stretching the pulse to >100ps.
KMLabs laser design allow us to circumvent pump modulation for oscillator CEP-stabilization. It is the combination of cryogenic cooling in all amplifier stages and the use of grating based stretchers and compressors that allows scaling to very high pulse energies and average power.
Please contact KMLabs for additional information and updates regarding our ultrafast CEP amplifier systems.
