MIRA COHERENT | Alldatasheet

Document overview

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Technical content

Continuing to enabling new research, and still in demand since its introduction in 1991, Mira remains the most powerful and flexible ultrafast Ti:S laser system available — a testament to its great design, with many features that remain unique to this day. For example, switching between femtosecond, picosecond and continuous-wave operation is fast and simple, while robust, passive Kerr lens modelocking reduces complexity and improves reliability. Every system also comes with Optima™ a suite of controls and diagnostics that greatly simplifies system optimization and daily operation. Widely Tunable, Femtosecond, Picosecond and CW Flexible, Ultrafast Ti:Sapphire Lasers

FEATURES

  • Simple, stable Kerr lens modelocking for ease-of-use and reliability
  • Optima™ simplifies system alignment, monitoring and control of the laser. It consists of: - Fast photodiode - Autoranging power monitor detector - CW detector - Automatic modelocking starter - ß-Lock™ automatic GTI control for skip-free ps wavelength tuning – only available on Mira
  • Integrated pump beam steering optics with multiple pump port options for easy pump alignment and flexible layout
  • Auxiliary CW cavity included for ease of alignment and tunable CW output Mira Ultrafast Lasers Oscillators

APPLICATIONS

  • Time-Resolved Spectroscopy
  • Raman Spectroscopy (CARS)
  • Ti:S Ultrafast Amplifier Seeding
  • Terahertz Generation
  • Material Modification Including Micro- and Nano-Texturing, LIPSS
  • Quantum Communication Studies

SPECIFICATIONS 1,2 Mira 900-D Mira HP-D Mira 900-F Mira 900-P Mira HP-F Mira HP-P Output Power (W) (depending on Pump Laser below) Verdi-G5 Verdi-G8 Verdi-G10 Verdi-G12 Verdi-G15 Verdi-G18 >0.75 >1.0 >1.4 >1.8 >2.2 >0.75 >1.0 >1.4 >1.8 >2.2 >2.8 >3.5 >2.5 >3.0 Tuning Range (nm) 700 to 10003 700 to 10003 690 to 10503 700 to 10003 Pulse Width4 <115 fs <2 ps <130 fs5 <2 ps Peak-to-peak power stability measured over 2 hours7 (%) <3 <3 <3 <3 Repetition Rate8 (MHz) 76 76 76 76 Spatial Mode9 TEM00 TEM00 TEM00 TEM00 Polarization Horizontal Horizontal Horizontal Horizontal STANDARD FEATURES Optima™ - Fast photodiode - Autoranging power monitor detector - CW detector - Automatic modelocking starter - Relative humiditiy sensor - ß-Lock™ automatic GTI control for skip-free ps wavelength tuning NA NA Purgeable enclosure for operation across the water absorption bands

  • • • • Integrated pump beam steering optics with 3 pump port options for easy alignment and layout flexibility
  • • • • Auxiliary CW cavity for ease of alignment and tunable CW output10
  • 11 • •11 • Notes: 1. Specifcations apply only with Coherent pump lasers. 2. Specifications apply at 800 nm and standard rep. rate of 76 MHz unless otherwise stated. 3. Wider coverage possible with short wave or extended long wave optics sets. 4. Based on sech² deconvolution of 0.65 times autocorrelation width. 5. In fs mode, the pulses are typically 1.5x the transform limit and so can be further compresses in an external compressor. 6. Measured rms in a 10 Hz to 20 MHz bandwidth. 7. Measured after warm-up with crystal cooling water maintained at ±0.1°C. 8. Rep. Rates in the range of 74 to 84 MHz available on request. 9. Typical M² <=1.1. 10. Additional test option required for optimum CW tuning performance. 11. Requires additional 3-plate BRF tuning element (not incluced) for skip-free tuning.

(NOT INCLUDED) Mira 900-D Mira HP-D Mira 900-F Mira 900-P Mira HP-F Mira HP-P Short Pulse Option (<70 fs) Long Pulse Option (>3.5 ps or >6 ps) Short Pulse Option (<70 fs) Long Pulse Option (>3.5 ps) External Pulse Compressor (SPO-I or -II) External Pulse Compressor (SPO-I or -II) PowerTrack™ Active Pump Beam Stearing (enhances power stablity specification to <2% over 24 hours) SynchroLock-AP - Repetition Rate Synchronization Pulse Picker Harmonic Generators (SHG, THG, FHG) Mira OPO-X - Optical Parametric Oscillator (IR, Visible, fs, ps) ELECTRICAL AND COOLING REQUIREMENTS Voltage (VAC) 110 or 240 Current Max. (A) 1 Line Frequency (Hz) 50 or 60 Cooling Water-cooled via pump laser cooling loop Laser Head Dimensions (L x W x H) Beam Height 120.6 mm (4.75 in) Typical Power Curves for Verdi-pumped Mira 900-F and Mira HP-F Typical Power Curves for Verdi-pumped Mira 900-P and Mira HP-P Output Power (W) 4.4 650 Wavelength (nm) 7007 50 8008 50 9009 50 1000 1050 0.4 0.8 1.2 1.6 2.0 2.4 2.8 3.2 3.6

4.0 Mira 900 w/15 W Verdi pump

Mira 900 w/12 W Verdi pump Mira 900 w/10 W Verdi pump Mira 900 w/8 W Verdi pump Mira 900 w/5 W Verdi pump Mira HP w/18 W Verdi pump Mira HP w/15 W Verdi pump Output Power (W) 4.0 700 Wavelength (nm) 7508 00 8509 00 9501 000 0.4 0.8 1.2 1.6 2.0 2.4 2.8 3.2

3.6 Mira 900 w/15 W Verdi pump

Mira 900 w/12 W Verdi pump Mira 900 w/10 W Verdi pump Mira 900 w/8 W Verdi pump Mira 900 w/5 W Verdi pump Mira HP w/18 W Verdi pump Mira HP w/15 W Verdi pump TYPICAL PERFORMANCE DATA

© 2023 Coherent Corp. Legal notices : coherent.com/legal For more information www.coherent.com Mechanical Specifications Mira 381 mm (15.00 in. ) Output 150.4 mm (5.92 in.) 79.5 mm (3.13 in. ) 877.4 mm (34.15 in. ) 1111.3 mm (43.75 in. ) 300.7 mm (11.84 in.) 40.1 mm (1.58 in.) 111.3 mm (4.38 in.) 128.5 mm (5.06 in.) 196.9 mm (7.75 in.) 187.5 mm (7.38 in.) 40.1 mm (1.58 in.) 19.1 mm (0.75 in.)150.4 mm (5.92 in.) 308.4 mm (11.84 in.) 120.7 mm (4.75 in.) 252.5 mm (9.94 in.) 12.07 mm (4.75 in. ) 269.7 mm (10.62 in.) Alternate Input Alternate Input Input Mira-HP Mira-HP Top View Side View Front View Rear View