Excelsior

CW LASERS

  • Complete range of wavelengths
  • Full suite of OEM and Scientific models
  • Exceptionally low optical noise for reliable high-speed data acquisition
  • High-quality TEM00 beam

The Spectra-Physics Excelsior® family of low-power continuous wave (CW) solid state lasers offers customers a complete range of wavelengths and power levels. Excelsior lasers provide state-of-the-art performance with the smallest footprint in their class.

473, 505, 515, 532, 542, 561, 594, and 1064 nm – Diode-Pumped Solid State Lasers

Using patented frequency-doubling techniques, Excelsior diode-pumped solid state (DPSS) lasers provide visible light with high conversion efficiency for lower power consumption and improved reliability. The DPSS models are available in the regular, compact laser head size, or in the slightly larger footprint called the “Extended Cavity” (XC) series that is used for the 505, 515, and 594 nm models as well as the higher power 532 nm and 561 nm models. The 1064 nm version is operated at its fundamental wavelength.

488 nm – Externally Doubled Diode Lasers

For applications requiring a 488 nm laser, Spectra-Physics offers an Excelsior laser based on highly reliable, externally doubled diode laser technology. The Excelsior is the world’s smallest 488 nm laser head, with a 40% narrower width than other commercially available lasers. This enables OEM designers to shrink next-generation desktop instruments—where size is a driving factor.

375, 405, 440, 642 and 785 nm – Direct Diode Lasers

The Excelsior family also includes a line of diode-based lasers with output powers from 16 to 100 mW. Wavelengths are generated directly from a semiconductor gain chip to reduce operational costs, increase lifetime use, and minimize space requirements. Excelsior direct diode lasers offer a choice of elliptical or collimated (circular) output beam configurations.

The Spectra-Physics Excelsior product line provides a consistent platform with the same mechanical footprint over a wide range of power levels and wavelengths. This allows for full component interchangeability among laser heads and controllers within a given architecture, requiring no additional adjustment or optimization. OEM customers can streamline supply chain and inventory management, as well as simplify service components for field maintenance.

Applications

Flow cytometry
Confocal microscopy
Micro-array readers
Laser-induced fluorescence
Raman spectroscopy
DNA sequencing
Interferometry
Semiconductor inspection and metrology
 Excelsior 375Excelsior 405Excelsior 440Excelsior 473Excelsior 488Excelsior 505Excelsior 515  
Wavelength 375 ±5 nm 405 ±5 nm 445 ±5 nm 473 nm 488 ±5 nm 505 nm 515 nm  
Output Power2 8, 16 , 70 mW 50, 100 mW 40 mW 5, 10, 50 mW 20, 50, 100 mW 10, 20 mW 50 mW  
Spectral Linewidth <0.5 nm <1 nm <1 nm <10 MHz (<0.01 pm) <1.5 nm <1 nm <10 MHz (<0.01 pm)  
Spatial Mode TEM00  
Longitudinal Mode Multi Multi Multi Single Multi Multi Single  
Frequency Drift <50 MHz/°C  
Beam Quality <1.5 <1.5 <1.5 M2 <1.1 <1.5 M2 <1.2 M2 <1.1  
Beam Diameter (1/e²)  
  Non-collimated 1.3 ±0.3 mm (V)2.6 ±0.6 mm (H) 1.3 ±0.3 mm (V)2.6 ±0.6 mm (H) 1.3 ±0.3 mm (V)2.6 ±0.6 mm (H) 0.11 ±0.01 mm  
  Collimated 1.3 ±0.3 mm 1.3 ±0.3 mm 1.3 ±0.3 mm 1.3 ±0.3 mm 0.67 ±0.07 mm 0.67 ±0.07 mm  
Beam Divergence  
  Non-collimated <0.71 mrad (V)
<0.35 mrad (H)
<0.76 mrad (V)
<0.38 mrad (H)
<0.84 mrad (V)
<0.42 mrad (H)
<7.3 mrad  
  Collimated <0.71 mrad <0.76 mrad <0.84 mrad <0.9 mrad <1.2 mrad <1.2 mrad  
Beam Ellipticity 1 ±0.1 (collimated) 1 ±0.1 (collimated) 1 ±0.1 (collimated) 1 ±0.15 1 ±0.1 1 ±0.2 1 ±0.2  
Beam Pointing Stability <6 µrad/°C <6 µrad/°C <6 µrad/°C <20 µrad/°C <6 µrad/°C <10 µrad/°C <10 µrad/°C  
Noise <0.2% rms (20 Hz–20 MHz)
<1% rms (20 Hz–500 MHz)
<0.2% rms (20 Hz–20 MHz)
<1% rms (20 Hz–500 MHz)
<0.2% rms (20 Hz–20 MHz)
<1% rms (20 Hz–500 MHz)
<0.5% rms (20 Hz–20 MHz) <0.2% rms (20 Hz–20 MHz)
<1% rms (20 Hz–500 MHz)
<1% rms (10 Hz–500 Hz) <0.5% rms (10 Hz–100 MHz)  
Power Stability (over 8 hours) <±2%  
Polarization Ratio >100:1 (vertical) >100:1 (vertical) >100:1 (vertical) >100:1 (vertical) >100:1 (vertical) >100:1 (horizontal) >100:1 (vertical)  
Warm-up Time <5 min <5 min <5 min <5 min <5 min <10 min <10 min  
Beam Height 19 mm  
Technology Direct Diode Direct Diode Direct Diode DPSS Direct Diode DPSS (XC) DPSS (XC)  
Utility and Environmental Specifications  
Operating Voltage3 5 VDC 5 VDC 5 VDC 5 VDC 5 VDC 12 VDC 12 VDC  
Maximum Power Consumption <10 W <10 W <10 W <30 W <10 W <60 W <60 W  
Operating Temperature 10–40°C (80% relative humidity)  
Maximum Laser Head Base Plate Temperature4 50°C  
Storage Temperature Range -20 to 60°C (90% relative humidity, non-condencing)  
Vibration 3 G (15–500 Hz) 3 G (15–500 Hz) 3 G (15–500 Hz) 3 G (15–500 Hz) 3 G (15–500 Hz) 3 G (15–500 Hz) 2 G (15–200 Hz)  
Shock Tolerance Up to 25 G  
Static Alignment Tolerance5  
Beam Position ±1 mm ±1 mm ±1 mm ±1 mm ±1 mm ±0.5 mm ±0.5 mm  
Beam Angle ±5 mrad ±5 mrad ±5 mrad ±5 mrad ±5 mrad ±5 mrad ±5 mrad  
 Excelsior
532
Multi Mode
Excelsior
532
Single Mode
Excelsior
542
Excelsior
561
Excelsior
594
Excelsior
642
Excelsior
785
Excelsior
1064
 
Wavelength 532 nm 532 nm 542 nm 561 nm 594 nm 642 ±3 nm 785 ±10 nm 1064 nm  
Output Power2 10, 20, 50 mW 50, 100, 150, 200, 300 mW7 50 mW 20, 50, 75 mW
100, 150 mW8
30, 50 mW 35, 60, 100 mW 45 mW 500, 800 mW9  
Spectral Linewidth <0.5 nm <10 MHz (<0.01 pm) <10 MHz (<0.01 pm) <10 MHz (<0.01 pm) <1 nm <0.5 nm <0.01 nm <10 MHz (<0.04 pm)  
Spatial Mode TEM00  
Longitudinal Mode Multi Single Single Single Multi Multi Multi Single  
Frequency Drift <50 MHz/°C <50 MHz/°C <50 MHz/°C <50 MHz/°C  
Beam Quality M² <1.1 M² <1.1 M² <1.1 M² <1.1 M2 <1.2 <1.5 <1.5 M2 <1.1  
Beam Diameter (1/e²)  
  Non-collimated 0.11 ±0.01 mm 1.0 ±0.2 mm (V)2.0 ±0.4 mm (H) 1.0 ±0.2 mm (V)1.9 ±0.4 mm (H)  
  Collimated 0.32 ±0.02 mm 0.32 ±0.02 mm
0.7 ±0.07 mm7
0.7 ±0.07 mm 0.7 ±0.05 mm 0.67 ±0.07 mm 1.0 ±0.2 mm 1.0 ±0.2 mm 0.45 ±0.05 mm  
Beam Divergence  
  Non-collimated <7.4 mrad <1.5 mrad (V)
<0.76 mrad (H)
<1.9 mrad (V)
<1.0 mrad (H)
 
  Collimated <2.5 mrad <2.5 mrad
<1.2 mrad7
<1.2 mrad <1.2 mrad <1.2 mrad <1.5 mrad <1.9 mrad <3.3 mrad  
Beam Ellipticity 1 ±0.15 (non-collimated)
1 ±0.1 (collimated)
1 ±0.1 (collimated) 1 ±0.1 1 ±0.1 1 ±0.2 1 ±0.1 (collimated) 1 ±0.1 (collimated) 1 ±0.1  
Beam Pointing Stability <20 µrad/°C (non-collimated)
<6 µrad/°C (collimated)°C
<6 µrad/°C <6 µrad/°C <6 µrad/°C <10 µrad/°C <6 µrad/°C <6 µrad/°C <6 µrad/°C  
Noise <0.5% rms (20 Hz–20 MHz) <0.2% rms (20 Hz–20 MHz) <0.2% rms (10 Hz–100 MHz) <0.2% rms (20 Hz–20 MHz) <1% rms (10 Hz–20 MHz) <0.2% rms (20 Hz–20 MHz)
<1% rms (20 Hz–500 MHz)
<0.2% rms (20 Hz–20 MHz)
<1% rms (20 Hz–500 MHz)
<0.2% rms (10 Hz–100 MHz)  
Power Stability (over 8 hours) <±1% <±1% <±2% <±1% <±2% <±2% <±2% <±2%  
Polarization Ratio >100:1 (vertical) >100:1 (vertical) >100:1 (vertical) >100:1 (vertical) >100:1 (vertical) >100:1 (vertical) >100:1 (vertical) >100:1 (horizontal)  
Warm-up Time <5 min <5 min <5 min <5 min <10 min <5 min <5 min <5 min  
Beam Height 19 mm  
Technology DPSS DPSS DPSS DPSS DPSS (XC) Direct Diode Direct Diode DPSS  
Utility and Environmental Specifications  
Operating Voltage3 5 VDC 5 VDC
12 VDC7
5 VDC 5 VDC
12 VDC8
12 VDC 5 VDC 5 VDC 5 VDC  
Maximum Power Consumption <30 W <30 W
<60 W7
<30 W <40 W
<60 W8
<60 W <10 W <10 W <30 W  
Operating Temperature 10–40°C (<90% relative humidity)  
Maximum Laser Head Base Plate Temperature4 50°C 50°C 45°C 45°C 50°C 50°C 50°C 45°C  
Storage Temperature Range -20°C to 60°C (<90% relative humidity, non-condensing)  
Vibration 3 G (15–500 Hz) 3 G (15–500 Hz) 3 G (15–500 Hz) 3 G (15–500 Hz) 2 G (15–200 Hz) 2 G (15–200 Hz) 2 G (15–200 Hz) 3 G (15–500 Hz)  
Shock Tolerance Up to 25 G  
Static Alignment Tolerance5  
Beam Position ±0.5 mm ±1 mm ±0.1 mm ±0.1 mm ±0.5 mm ±1 mm ±1 mm <±0.1 mm  
Beam Angle ±5 mrad ±0.5 mrad ±0.5 mrad ±0.5 mrad ±5 mrad ±5 mrad ±5 mrad <±0.5 mrad  

1. Complies with EN 60825-1:2001 Standards as applicable, laser safety Class 3B laser
2. Output power is variable via analog power supply. Specifications apply at nominal power level to 50% of nominal power. Recommended power range 10–100% of nominal power. Excelsior 488 available as fixed power version only.
3. Power supply must meet following requirements:
- DC Voltage 5 and 12 VDC ±5%
- Power 30 W for 5 VDC, 60 W for 12 VDC
- Supply Input Ripple <150 mV peak-to-peak
4. With adequate heatsink
5. Static alignment tolerances relative to adjustment holes
6. Available cable lengths range from 0.5 to 1.8 m
7. 300 mW Excelsior 532
8. 100/150 mW Excelsior 561
9. Output power for Excelsior 1064 OEM model is 500 mW. Output power for Excelsior 1064 CDRH models is 500 mW and 800 mW.
10. Specifications subject to change without notice

Excelsior Laser Dimensions

  ModelModelModelModel
    473 nm (5 and 10 mW),
532 nm (Multi Mode Non-collimated)
375 nm, 405 nm, 440 nm, 473 nm (50 mW), 488 nm,
532 nm (Single Mode, Multi Mode Collimated),
542 nm, 561 nm, 642 nm, 785 nm, 1064 nm
Direct Diode and DPSS CDRH models 505 nm, 515 nm, 594 nm
561 nm (100 & 150 mW)
532 nm (300 mW), DPSS XC CDRH models
A Length 3.33 in (84.5 mm) 3.74 in (95 mm) 4.33 in (110 mm) 4.53 in (115 mm)
B Width 1.1 in (28 mm) 1.1 in (28 mm) 1.65 in (42 mm) 1.97 in (50 mm)
C Height 1.44 in (36.5 mm) 1.44 in (36.5 mm) 1.44 in (36.5 mm) 1.71 in (43.5 mm)
D Beam Height 0.75 in (19 mm) 0.75 in (19 mm) 0.75 in (19 mm) 0.75 in (19 mm)
E Beam Exit (from side) 0.55 in (14 mm) 0.55 in (14 mm) 0.83 in (21 mm) 0.83 in (21 mm)
offset 0.16 in (4 mm) from center

Excelsior Controller Dimensions

  ModelModelModelModelModelModel
    375 nm, 405 nm, 440 nm, 488 nm, 642 nm, 785 nm 473 nm, 532 nm, 542 nm, 561 nm, 1064 nm 505 nm, 515 nm, 594 nm
561 nm (100 & 150 mW)
532 nm (300 mW)
Direct Diode CDRH models DPSS CDRH models DPSS XC CDRH models
A Length 2.76 in (70 mm) 5.43 in (138 mm) 6.69 in (170 mm) 6.49 in (165 mm) 6.49 in (165 mm) 7.09 in (180 mm)
B Width 2.76 in (70 mm) 3.91 in (99.4 mm) 3.94 in (100 mm) 5.51 in (140 mm) 5.51 in (140 mm) 5.51 in (140 mm)
C Height 0.87 in (22 mm) 1.32 in (33.5 mm) 1.57 in (40 mm) 1.57 in (40 mm) 2.75 in (70 mm) 2.75 in (70 mm)

Similar Products

Product Description
Excelsior One
Compact all-in-one CW lasers (OEM only)
Millennia eV
Highest power 532 nm pump lasers, up to 25 W
Millennia Edge
Up to 6 W single frequency 532 nm lasers

Supporting Products

Product Description
10A
Low power thermal sensors – 20 mW to 10 W
3A
High sensitivity thermal sensors – 100 nW to 3 W
12A
High sensitivity thermal sensors – 100 nW to 12 W