Eagleyard Photonics completes its offering for Rubidium spectroscopy/optically pumped Atomic Clocks.
The 795 nm DFB laser is the latest addition to eagleyard’s product portfolio. Next to the 780 nm DFB lasers and the gain chips for extended cavity setups (ECDL), the new laser enlarges the choice for Rubidium spectroscopy and the related application such as optically pumped atomic clocks.
The 14-Pin butterfly package adds ready-to-use single-frequency-emission features by comprising thermoelectric cooler and thermistor enabling precise wavelength tuning. The package complying with industry standard is designed to provide electrical input as well as optical output in the same layer. It allows the use of standard peripheral equipment, such as mounts and drivers.
Major performance parameters
- Wavelength: 795 nm (for Rb D1 line at 794.98 nm)
- Line width: < 1 MHz
- Mode-hop-free tuning range: >10 GHz
- Output power: 80 mW
- 14-Pin windowed butterfly package with integrated beam collimation
- Optional integrated micro-isolator available
Other variants of the product: www.eagleyard.com/products/sin...quency-laser-diodes/ or http://www.eagleyard.com/products/gain-chips/
Single-frequency laser diodes have a wavelength-selective grating integrated in the laser chip. Thus they operate on a single resonator mode emitting quasi-monochromatic radiation with a very small line width and low phase noise. The lasers can have very low-intensity noise because of the lack of mode partition noise. Due to the Gaussian mode, the output is diffraction limited.
The choice of a DFB design instead of a similar DBR structure is meant to provide a broader smooth tuning range around the operational point without the risk of experiencing spectral issues known as mode-hops, as these are given by design of a DBR diode, making the latter less suitable for the needs of atom spectroscopy.
Visit Eagleyard at Laser World of Photonics in Munich from 26–29 June, in Hall B2 at booth #330.