ORC-Micro

Compact optical reference cavity for sub-kHz stability and short-term laser stabilization.

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ORC-Micro Compact Optical Reference Cavity - Short-term laser stabilization

Compact Form Factor

Extremely small design for easy integration

Temperature Tunability

Adjustable output via precise temperature control

Flexible Coupling

Free-space or fiber in- and out-coupling options

Vacuum-free Operation

Simple plug-and-play use without vacuum system

Specifications

	ORC-Micro	ORC-Micro with ORC-Micro-FC
Wavelength	1542 nm or 1550 nm	1542 nm or 1550 nm
Finesse	> 50k	> 50k
Free Spectral Range	4 GHz	4 GHz
Temperature Tunability	~1 FSR / 3°C @ T = 24°C	~1 FSR / 3°C @ T = 24°C
In- and Output Port	free space	fiber-coupled
Dimensions	W 95 mm, L 160 mm, H 67 mm	W 95 mm, L 160 mm, H 67 mm
Chamber Material	Aluminium	Aluminium
Mass	1 kg	1.2 kg

	ORC-Micro	ORC-Micro with ORC-Micro-FC
Electrical Input (Peltier)	Input current: ≤ 2 A	Input current: ≤ 2 A
Laboratory Temperature	T = 22 ± 5°C	T = 22 ± 5°C

	ORC-Micro	ORC-Micro with ORC-Micro-FC
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

Options

ORC-Micro fiber ports for laser input and transmission output monitoring.

Modified Allan deviation (MADEV) measurement to verify the ultimate achievable stability and drift performance. All components from one supplier with full automation guarantees hands off operation and more time for your experiments.

A TEC driver to stabilize the temperature of the reference cavity to the zero-crossing temperature of the coefficient of thermal expansion.

Fiber-coupled compact optical unit for the generation of the PDH reflection signal.

For stabilizing a laser to the cavity, this package provides all required electronics in a single configurable device, i.e., Menlo’s SYNCRO controller (3rd generation). The SYNCRO provides full software control of all parameters and intuitive use via touchscreen. This 3U, 19-inch device can also be remotely accessed via LAN. The package includes phase modulation and demodulation, and a fast analog PI²D controller (> 10 MHz bandwidth) providing two servo outputs for fast and slow actuators and a TEC controller for temperature stabilization.

For stabilizing a laser to the cavity, this package provides all required electronics in a single configurable device, i.e., Menlo’s SYNCRO controller (3rd generation). The SYNCRO provides full software control of all parameters and intuitive use via touchscreen. This 3U, 19-inch device can also be remotely accessed via LAN. The package includes phase modulation and demodulation, and a fast analog PI²D controller (> 10 MHz bandwidth) providing two servo outputs for fast and slow actuators, a TEC controller for temperature stabilization and a laser module at 1542 or 1550 nm.