Features

• When the polarization characteristics of the laser beam affect the measurement result in the diffraction grating of a spectrometer, the polarization state of the laser beam incident on the diffraction grating is disturbed by the depolarization plate.
• DEQ-1N is a single plate quartz substrate with 2° wedges.
• Wide transmission wavelength range is obtained.
• Because of the wedge, the transmitted light causes an angular displacement of about 1°.
• DEQ-2S is a depolarizing plate made by bonding a quartz with a wedge and synthetic quartz.
• Synthetic quartz wedges cancel out the crystal beam declination, so the beam does not bend.
• Anti-reflection films on both sides provide high transmittance.
• The DEQ-2OP is a depolarizing plate with 2 crystal pieces in optical contact.
• It has a wide transmission wavelength range and the beam does not bend.
• The depolarizing plate is mounted on a φ30 mm aluminum frame.
• * In order to improve the effect of depolarization, it is necessary to use as large a beam diameter as possible.
• * If the beam diameter is small, sufficient depolarization cannot be achieved.
• * The polarization direction of the incident beam must be 45 degrees from the optical axis.
• * If the transmitted beam is observed over a long distance, it may be separated into two beams.
• * The depolarizing plate cannot produce a completely unpolarized state.
• * Please make sure that there is no mistake in the usage before purchasing.