fiber coupled aom

 High quality fiber coupled aom for Q-switch laser and other applications. AOMs with wavelength of 1064nm,1550nm,2000nm are fiber coupled, while those 532nm,581nm,614nm, 705nm, 780nm are free space . You need to choose the wavelength, frequency, fiber type,fiber jacket on in&out and fiber length.

FAQ:

1. Most of the specification can be customized according to your requirements. Please send us your application details.

2. The lead time is about 1-2 weeks, and we can ship over the world.

3. AOM has the drivers included, that means the price is for whole unit,an Acousto optic modulator and a driver.

An acousto-optic modulator (AOM) uses the acousto-optic effect to diffract and shift the frequency of light using sound waves (usually at radio-frequency).More news about AOM modulators.They are used in lasers for Q-switching, telecommunications for signal modulation, and in spectroscopy for frequency control. A piezoelectric transducer is attached to a material such as glass. An oscillating electric signal drives the transducer to vibrate, which creates sound waves in the material. These can be thought of as moving periodic planes of expansion and compression that change the index of refraction. Incoming light scatters off the resulting periodic index modulation and interference occurs similar to Bragg diffraction. The interaction can be thought of as a three-wave mixing process resulting in Sum-frequency generation or Difference-frequency generation between phonons and photons

DPSS Laser Applications

660nm Stable DPSS Red Diode Laser is used for plasmonic resonance and photodynamic therapy

Acousto-Optic Frequency Shifters 1064nm Free-space AOFS

 Acousto-Optic Frequency Shifters 1064nm Free-space AOFS

The acousto-optic Frequency Shifter (AOFS) with RF driver is used to modify the frequency of the optical beam. Due to the Doppler shift, the frequency shift of 1st order diffracted light (variation quantity of wavelength) equals to the frequency of acoustic (wavelength) after the AO frequency shifters. If the incident direction of acoustic wave and optical wave are the same, the laser frequency shifts will be the positive value, anyway if the incident direction are opposite, the value of the laser frequency shifts will be the negative value.

Applications such as interference-based optical techniques require a high extinction ratio between the diffracted and undiffracted beam; This can be achieved with a high-quality optical finish to minimize optical scatter.

We offer standard products with frequency shifts of 73 MHz In addition, also provide the services of customize for center frequency and the value of frequency shifts.

Applications：

Interferometry
Laser cooling
Laser Doppler velocimetry
Optical heterodyne detection

Interaction material TeO2
Wavelength 1064 nm or other
Damage threshold>1 GW/cm²
AR coating reflection<0.2 % per surface Transmission(Single pass)>97 %
RF frequency70/73/83 MHz or other
Frequency shift bandwidth : +-1,+-3,+-8MHz or other
Polarization Linear, vertical to base
Aperture 1.0 mm or other
Acoustic mode Compressional
Rise time<120 ns/mm Diffraction angle 17.7,18.5,21.0 mrad or other Diffraction efficiency>70 %
RF power 2 W (max)
RF connector SMA-F
Cooling Conduction-cooled
Shell material Aluminum alloy 6061

DFB laser BeamQ

 DFB laser

A DFB Laser (distributed feedback laser) is a type of laser diode, quantum cascade laser or optical fiber laser. The active region of the DFB Laser contains a periodically structured element or diffraction grating.

The structure builds a one-dimensional interference grating (Bragg scattering) and the grating provides optical feedback for the laser.

DFB lasers tend to be much more stable than Fabry-Perot or DBR lasers and are used frequently when clean single mode operation is needed, especially in high speed fiber optic telecommunications. Semiconductor DFB lasers in the lowest loss window of optical fibers at about 1.55um wavelength, amplified by Erbium-doped fiber amplifiers , dominate the long distance communication market, while DFB lasers in the lowest dispersion window at 1.3um are used at shorter distances.

1550nm DFB laser photodiode coaxial pigtail types package FC/APC SC/APC

Certification: CE

Origin: CN(Origin)

Fiber Type: Single Mode

Connector Type: FC/APC

Model Number: DFB-1550nm

Item: DFB laser photodiode

wavelength: 1550nm

color: randomly:yellow,white or blue

Qty: 1pc

500nm-532nm Green Laser Diodes

520nm 50mw Green Laser Diode TO56 with PD N Type 515nm 530nm LD DIY/LAB Light

 

1.Single tranverse mode semiconductor laser

2.TO56 package with photo diode

Electrical and Optical Characteristics(Tc=25℃)

Lasing Wavelength:520nm(±10nm)

Optical Output:50mW

Threshold Current:45mA

Operating Current:125mA

Operating Voltage:6.5V~8.0V

Monitor Current:0.09mA

Operating Temperature:-20 to +60℃

Nichia NURM31T 638nm 43w brand new laser array

Nichia NURM31T 638nm 43w brand new laser array

High Power Multiple Laser Diode LD Chip Package

24 Collimator Beams

6 series x 4 parallel connection

High Heat Dissipation

Forward Current: 2.25A (CW Operation)

Tm = 25 , ACC (Auto Current Control) Operation