698.4 QT Series Laser

Ultra-narrow Linewidth

698.4 QT Series Laser

Our 698.4 QT Series laser is specifically designed for deployment in systems utilising strontium transitions. Its outstanding beam characteristics and small footprint makes it a compelling choice for such a demanding application.

Key Features

Narrow Linewidth

≤ 0.3 MHz (no external ref.)

High Power Stability

≤ 2.0 % Peak to Peak

High Spectral Stability

± 1.0 pm

Excellent Beam
Quality

Integration Features

USB Connectivity
Software Control
Heatsink Options
Remote Diagnostics

Specifications

Output Power (fixed value within range)

up to 50 mW

Wavelength

698.4 nm

Spectral Bandwidth

≤ 0.3 MHz (no external ref.)

Spatial Mode

TEM00

Spectral Stability (over 8 hours)

± 1.0 pm

Coherence Length

> 100 m

Output Power Stability (over 8 hours)

≤ 2.0 % Peak to Peak

Output Power Noise (10 Hz - 10 MHz)

≤ 0.1 % RMS

Beam Divergence

≤ 1 mrad, diffraction limited

Beam Diameter at Output Aperture

0.8 - 1.2 mm

Beam Pointing Stability

≤ 5 µrad/°C

Polarisation Ratio

≥ 100:1, vertical

Laser Head Dimensions

L X W

210 x 100 mm

Beam Height

65 mm

Environmental Conditions

Ambient Temperature Range

18 - 30 °C

Laser Head Interface Stability

± 1.5 °C

Storage

0 - 50 °C

Humidity

5 - 95 %, non-condensing

Applications

Downloads

Options

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