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OSE
Optical Sampling Engine

Specifications

Advanced Features and Benefits

The Optical Sampling Engine (OSE) offers two frequency coupled lasers at unprecedented compactness and robustness for sampling and ASOPS applications.

Repetition Rate	100 MHz
Repetition Rate Offset Tuning Range	Δf = -10 kHz .. + 10 kHz, in steps of 10^-5 Hz
Time Measurement Window*	10 ns
Data Point Increment **	1 ps @ 10 kHz, 0.1 fs @ 1 Hz
RMS Timing Jitter (0.1 Hz -500 kHz)	<150 fs
RF Reference	external or internal 10 MHz reference
Laser Heads
Wavelength	1560 nm
Average Output Power	>100 mW (from each laser)
Output Port	fiber-coupled FC/APC
Pulse Length	<90 fs after 1 m PM fiber
Trigger Signal	TTL level at offset frequency, <10 ns rise time

*Scales with the repetition rate **Scales with the ratio of the repetition offset and the repetition rate squared (Δf/f_r²)

Description

In time-resolved measurements, an ultrafast pulse triggers a reaction and a second pulse takes a snapshot of the induced change. By shifting the arrival time of the probe pulse with respect to the pump pulse the stimulated process can be followed in time. The OSE is a one-of-a-kind compact Optical Sampling Engine that includes two femtosecond Erbium fiber lasers, synchronized with a high-accuracy phase-locking electronics. It allows for high-speed scanning over many nanoseconds of time delay without a mechanical delay line. In just 19” 3U, it features a fully automated turn-key asynchronous optical sampling system (ASOPS).

The ultrafast lasers delivering the pump and probe pulses are locked together at a tunable repetition rate difference. An optically generated TTL trigger output is integrated for triggering customer data acquisition devices. Due to its modular design, the OSE is the most versatile dual laser system on the market: Additional external modules are retrofittable, to provide higher powers, customized spectra and pulse lengths. The underlying proprietary technology based on figure 9® lasers is well-suited even for demanding environments.

COMPLETE SOLUTION: The turn-key, fully hands-off optical setup is integrated into a 19” 3U rack, and offers unprecedented compactness. The embedded platform ensures automatic laser stabilization. Changes of the operation mode can be done through the front screen, or be remote control over network by a browser-based graphical user interface. For convenience, the system offers a TTL trigger signal. Additionally, the OSE can provide additional outputs as a seed to pump external amplifiers.