Excelsior® One™ Direct Diode and DPSS Lasers
The Excelsior One is a new line of UV, visible, and near-IR CW lasers based on Spectra-Physics' It's in the Box design, combining the laser head and controller into a single compact package.

Manufacturer: Spectra-Physics — USA
Overview
The Excelsior One is a new line of UV, visible, and near-IR CW lasers based on Spectra-Physics' It's in the Box design, combining the laser head and controller into a single compact package. Available as free-space and fiber-coupled lasers across twelve different wavelengths, Excelsior One delivers up to 500 mW of average power using both direct diode and diode-pumped solid state (DPSS) laser technology in a common mechanical footprint. Excelsior One lasers are widely used in flow cytometry, confocal microscopy, micro-array readers, laser-induced fluorescence, Raman spectroscopy, DNA sequencing, and interferometry.
One Platform for 12 Wavelengths
Excelsior One offers visible wavelengths at 473, 515, 532, 542, and 561 nm through patented frequency-doubling DPSS techniques, plus direct diode wavelengths at 375, 405, 445, 488, 642, and 785 nm, and 1064 nm at the fundamental, all with an RS-232 software interface for laser power control.
Fiber-Coupled Versions
Fiber-coupled Excelsior One lasers use single-mode, polarization-maintaining fiber terminated with an FC/APC connector, offering outstanding power stability and a polarization extinction ratio below -30 dB over the operating temperature range.
Common Specifications
| Specification | Excelsior® One™ Direct Diode and DPSS Lasers |
|---|---|
| Wavelength Options | 375, 405, 445, 473, 488, 515, 532, 542, 561, 642, 785, 1064 nm |
| Output Power | 10–500 mW |
| Beam Quality (TEM00) | <1.1–1.3 |
| Power Stability (8 hours) | <±2% |
| Polarization Ratio | >100:1 |
| Warm-up Time | <5 min |
| Dimensions (L×W×H) | 3.94 × 1.57 × 1.57 in (100 × 40 × 40 mm) |
Model Comparison
| Specification | Excelsior One 375 | Excelsior One 473 | Excelsior One 532 Single Mode | Excelsior One 1064 |
|---|---|---|---|---|
| Wavelength | 375 ±5 nm | 473 nm | 532 nm | 1064 nm |
| Output Power | 70 mW | 10, 50 mW | 50, 100, 150, 200 mW | 500 mW |
| Technology | Direct Diode | DPSS | DPSS | DPSS |
| Longitudinal Mode | Multi | Single | Single | Single |
