Microchip in reflection mode

Microchip in reflection mode

The Microchip (MC) consists of a saturable absorber bonded with a Nd:YVO₄ laser crystal. It can be used to generate pulsed laser radiation at 1064 nm wavelength if pumped with a diode laser at 808 nm using passively Q-switching.

The main advantage of a laser build with a microchip is the pump power dependent repetition rate with fixed pulse duration and pulse energy. By simply increasing the pump power at 808 nm the repetition rate - and consequently the average output power - will be increased proportionally starting from the laser threshold. The laser output is linear polarized.

• MC - Microchip in reflection mode
• MCT - Microchip in transmission mode

Possible application areas of this laser radiation are:   

l  micromachining

l  light detection and ranging (LIDAR)

l  precision measurements

l  frequency conversion

MC - Microchip in reflection mode

• The Nd:YVO₄ laser crystal is bonded with a saturable absorber mirror (SAM).
• The laser output beam is in the reverse direction of the pump beam and must be separated from pump light by using a dichroitic mirror.
• The laser output is linear polarized with the polarization direction perpendicular to the groove in the copper heat sink.

MCT - Microchip in transmission mode

• The Nd:YVO₄ laser crystal is bonded with a saturable output coupler (SOC).
• The laser output beam is in the same direction as the pump beam.
• The laser output is linear polarized.