ORC-Micro
Optical Reference Cavity

Specifications

Advanced Features and Benefits

Extremely compact Form Factor
Temperature Tunability
Free-space or Fiber in- & out Coupling
Vacuum-free Plug-and-play Operation

Specifications	ORC-Micro (viewport)	ORC-Micro (FIB)
Wavelength	1542 nm or 1550 nm	1542 nm or 1550 nm
Finesse	>50 k	>50 k
Free Spectral Range	4 GHz	4 GHz
Temperature Tunability	~1FSR/3° @ T=24°	~1FSR/3° @ T=24°
Dimensions	W 95 mm, L 160 mm, H 67 mm	W 95 mm, L 160 mm, H 67 mm
Vacuum Chamber Material	Aluminium	Aluminium
Mass	1 kg	1.2 kg
Operational Requirements
Electrical input (Peltier)	Input current: ≤ 2 A	Input current: ≤ 2 A
Laboratory temperature	T=22 ± 5 °C	T=22 ± 5 °C
Achievable Performance*	ORC-Micro (viewport)	ORC-Micro (FIB)
Stability (MADEV at 10 ms)**	≤1 · 10^-12	≤1 · 10^-12

*The ultimate achievable ORC-Micro stability and drift performance depends on several factors, such as the laboratory environment in which the cavity is placed, as well as the electronics and the laser employed. All components from one supplier with full automation guarantees hands off operation and more time for your experiments. No stability and drift performance guaranteed.

**With the linear drift ≤ 5 kHz/s removed

Description

The ORC-Micro is the optical reference cavity (ORC) with the most compact form factor, for all applications that require short-term (10 ms) laser stabilization and sub-kHz stability performance.

The cavity provides price-sensitive single-color (1542/1550 nm) optical reference options, both in free-space and fiber coupled configurations, with a free-spectral range (FSR) of 4 GHz and a finesse of >50k. Moreover, temperature tuning and stabilization is achieved via a Peltier element. The ORC-Micro is designed to be the stable reference for applications such as laser cooling and thermal beam experiments, complementing the ultimate finesse performance of the ORC-Cubic and Cylindric.

In the standard free-space solution, an external laser can be coupled to the ORC-Micro through a viewport, while monitoring the transmission output signal. Several options including fiber-coupling and Pound-Drever-Hall (PDH) electronics are available for customization. In particular, with the fiber in- and outcoupling setup the user can benefit from a plug-and-play solution for telecom laser-stabilization applications.

Finally, the considerably reduced form factor of the ORC-Micro enables OEM integration, in synergy with other Menlo Systems’ products.