> saturable absorber > SAM | SOC| RSAM | SANOS | SA
> laser> microchip 1064 nm| fiber laser evaluation kit 1030 nm | Mirrors & filters
> terahertz> THz spectrometer | photoconductive antenna | THz parts
> custom devices

BATOP Logo Saturable Absorber

-> see poster "Saturable absorber" (pdf) and "Mounting types" (pdf)

SAM™ - Saturable Absorber Mirror

Saturable absorber mirrors are Bragg-mirrors with AlAs/GaAs quarter-wave stacks, grown on GaAs wafers with one or more low temperature GaAs (LT-GaAs) or LT-InGaAs films as saturable absorbers.

Our saturable absorber mirrors with carrier relaxation times in the picosecond range can be used for passive mode-locking and Q-switching of diode-pumped lasers. The design of the thin fim stack can be adjusted to meet the requirements of different passively mode-locked lasers in the picosecond and femtosecond region.

Website about SAM

RSAM™ - Resonant Saturable Absorber Mirror

The resonant saturable absorber mirror (RSAM) is designated to reshape an optical signal. An optical signal which propagates in optical fibers, communication nodes and other optical devices is subject to optical losses and is modified. After every amplification stage, which uses the stimulated optical emission process, the signal to noise ratio decreases as a result of the inevitable spontaneous emission.

The RSAM, included after an optical amplifier, decreases the noise floor and allows to pass the optical pulses unaffected due to the nonlinear-optical behavior.

Website about RSAM

SOC - Saturable Output Coupler

Using a saturable output coupler (SOC), a self-starting, passively mode-locked or Q-switched diode-pumped solid-state or fiber laser with a very simple layout can be arranged. The SOC is a combination of a saturable absorber mirror (SAM) with an output coupler.

Website about SOC

SANOS™ - Saturable Noise Suppressor

The resonant saturable absorber mirror (RSAM) is designated to reshape an optical signal. An optical signal which propagates in optical fibers, communication nodes and other optical devices is subject to optical losses and is modified. After every amplification stage, which uses the stimulated optical emission process, the signal to noise ratio decreases as a result of the inevitable spontaneous emission.

The RSAM, included after an optical amplifier, decreases the noise floor and allows to pass the optical pulses unaffected due to the nonlinear-optical behavior.

Website about RSAM

SA - Saturable Absorber in transmission

The saturable absorber without a Bragg-mirror can be used for self-starting, passively mode-locking of a laser in a similar way as a SAM, but it is working in transmission mode. It can be inserted for instance into a fiber ring laser.

BATOP Logo

Saturable Absorber

-> see poster "Saturable absorber" (pdf) and "Mounting types" (pdf)

SAM™ - Saturable Absorber Mirror

Saturable absorber mirrors are Bragg-mirrors with AlAs/GaAs quarter-wave stacks, grown on GaAs wafers with one or more low temperature GaAs (LT-GaAs) or LT-InGaAs films as saturable absorbers.

Our saturable absorber mirrors with carrier relaxation times in the picosecond range can be used for passivele mode-locking and Q-switching of diode-pumped lasers. The design of the thin fim stack can be adjusted to meet the requirements of different passively mode-locked lasers in the picosecond and femtosecond region.

Website about SAM

RSAM™ - Resonant Saturable Absorber Mirror

The resonant saturable absorber mirror (RSAM) is designated to reshape an optical signal. An optical signal which propagates in optical fibers, communication nodes and other optical devices is subject to optical losses and is modified. After every amplification stage, which uses the stimulated optical emission process, the signal to noise ratio decreases as a result of the inevitable spontaneous emission.

The RSAM, included after an optical amplifier, decreases the noise floor and allows to pass the optical pulses unaffected due to the nonlinear-optical behavior.

Website about RSAM

SOC - Saturable Output Coupler

Using a saturable output coupler (SOC), a self-starting, passively mode-locked or Q-switched diode-pumped solid-state or fiber laser with a very simple layout can be arranged. The SOC is a combination of a saturable absorber mirror (SAM) with an output coupler.

Website about SOC

SANOS™ - Saturable Noise Suppressor

The SANOS is a device for improving the signal to noise ratio of an optical pulsed signal using a RSAM as a nonlinear optical element. But whereas the RSAM is a reflecting device, the SANOS is a transmitting device. This is the main advantage of the SANOS in comparison with the RSAM.

Website about SANOS

SA - Saturable Absorber in transmission

The saturable absorber without a Bragg-mirror can be used for self-starting, passively mode-locking of a laser in a similar way as a SAM, but it is working in transmission mode. It can be inserted for instance into a fiber ring laser.