Modulated HE-NE Laser (1.5 mW)

Product Code: SE-9449A


This Helium Neon Laser has two advantages over the other lasers:

1) 1.5 mW: The extra power makes laser experiments and demonstrations brighter (and often easier). It’s especially useful for holography. A shorter exposure time can be used to minimize problems with vibrations.

2) Modulation: Connect a microphone to this laser, and students can transmit voice through the laser beam to a distant receiver. Or use this laser as a laser stroboscope for timing.

Note: Additional equipment, not available from PASCO, is required for laser communication experiments.

Product Specifications

Wavelength 632.8 nm
Beam Diameter 0.49 mm
Beam Divergence 1.65 mRad
Housing Size 32.8 x 7.2 x 7.4 cm
Modulation Range 85-100% of full power
Input Signal Frequency 50 Hz-600 kHz (±3 dB); miniature phone jack accepts audio input signals at 100 mV peak-to-peak and 60 kΩ impedance.
Transmission Range Effective up to several hundred feet; with a good collimator and detector, transmissions up to several thousand feet are possible.
Power 115 VAC, 60 Hz (not available in 220 V)