Coherent Chameleon Ultra Family
The Coherent Chameleon Ultra I and Ultra II lasers deliver the highest power, the widest tuning range, the fastest tuning speed and the lowest noise of all commercially available Ti:Sapphire lasers.
For more information, visit https://www.coherent.com

High beam quality and pulse duration
Beam quality and pulse duration is specified to perfectly match your microscope or any other femtosecond experiment. Because of these capabilities, it is possible to image more dyes and fluorescent proteins, and to obtain deeper images faster than with any other laser.
High power
The high power from the Chameleon Ultra II makes it an ideal pump source for the Chameleon Compact OPO wavelength extension, enabling imaging even further into the infrared
Ultrawide tuning range
The Chameleon Ultra II’s 680 nm to 1080 nm tuning range allows peak excitation of any marker – from short-wavelength dyes such as Indo or Fura, ubiquitous fluorescent probes such as eGFP, and also red shifted probes such as the mFruits and RCaMP. High peak power at the sample also ensure optimum native fluorescence excitation or SHG imaging.
Versatile
Chameleon Ultra is the true workhorse of the non-linear imaging market and has been qualified with the widest range of commercial inverted or upright multiphoton microscope platforms available.
Chameleon Ultra Applications:
• Multiphoton Excitation (MPE) Microscopy
• Non-linear Optics
• Time Resolved Spectroscopy
• CARS/SRS Microscopy
• Optogenetic Photoactivation
• Second Harmonic Generation Imaging
• Pumping of Optical Parametric Oscillators (OPO)
Chameleon Ultra I | |
---|---|
Average Power (W) (at peak of tuning range) | >2.9 |
Tuning Range (nm) | 690 to 1040 |
Peak Power (kW) (at peak of tuning range) | >250 |
Power Specifications | >600 mW at 690 nm |
>1.5W at 710 nm | |
>2.9W at 800 nm | |
>1.45W at 920 nm | |
>450 mW at 1020 nm | |
>300 mW at 1040 nm | |
Tuning Speed2 (nm/s) | >40 |
Chameleon Ultra II | |
Average Power (W) (at peak of tuning range) | >3.5 |
Tuning Range (nm) | 680 to 1080 |
Peak Power (kW) (at peak of tuning range) | >300 |
Power Specifications | >650 mW at 680 nm |
>1.6W at 700 nm | |
>3.5W at 800 nm | |
>1.6W at 920 nm | |
>550 mW at 1020 nm | |
>200 mW at 1080 nm | |
Tuning Speed2 (nm/s) | >40 |
Chameleon Ultra I & Ultra II | |
Pulse Width (fs) | 140 |
Noise (%) | <0.15 |
Output Power Stability (%) | <±0.5 |
Spatial Mode | TEM00 (M2 <1.1) |
Beam Diameter (mm) | 1.2 ±0.2 |
Beam Ellipticity | 0.9 to 1.1 |
Astigmatism | <10% |
Repetition Rate (MHz) | 80 |
Polarization | Horizontal >500:1 |
Pointing (μrad/nm) | <0.5 |
Operating Voltage | 90 to 250 VAC (auto ranging) |
Maximum Operating Current | <15A at 90 VAC (power supply) |
<7A at 90 VAC (chiller) | |
<2A at 90 VAC (MRU X1) | |
System Power Consumption | 2300W max., 1300W typical |
Line Frequency | 47 to 63 Hz |
Operating Temperature Range | 15 to 35°C (59 to 95°F) |
Non-operating Temperature Range | 5 to 40°C (41 to 104°F) |
Weight of Laser Head | 42 kg (93 lbs.) |
Weight of Power Supply | 41 kg (90 lbs.) |
Umbilical Length | 4 m (13 ft.) |
Chiller: Dimensions (L x W x H) | 436 x 270 x 393 mm (17.17 x 10.63 x 15.47 in.) |
Chiller: Weight | 11 kg (25 lbs.) |
MRU Air Recirculator: Dimensions (L x W x H) | 46 x 43 x 8.5 cm (18 x 17 x 3 in.) |
MRU Air Recirculator: Weight | 9 kg (20 lbs.) |