LBTEK-Your Trusted Partner For Optoelectronic Experiments!

Product Description

Design wavelength: 266 nm-1550 nm optional
Phase retardation δ = (2m+1)π/2, where m is a positive integer
Commonly used to convert linearly polarized light into circularly polarized light
Available in mounted and unmounted versions

The LBTEK Quartz Multi-Order Quarter-Wave Plate is made from a single piece of quartz crystal, featuring a relatively large thickness and simple fabrication. When a beam of linearly polarized light is incident perpendicularly on a waveplate made of a uniaxial crystal, it splits into o-light and e-light, which propagate in the original direction but vibrate perpendicularly to each other, with corresponding refractive indices no and ne. Due to the different velocities of the two lights in the crystal, the phase retardation produced after passing through a waveplate of thickness d is δ = (2π/λ)|no-ne|d. Here, |no-ne|d represents the optical path difference. A quarter-wave plate produces an optical path difference of (4m+1)λ/4 and a phase retardation δ = (4m+1)π/2, where m is a non-negative integer. For multi-order quarter-wave plates, m is not zero, and the thickness is determined by the order m. Compared with zero-order quarter-wave plates, light passing through a multi-order quarter-wave plate experiences an additional phase retardation of m full wavelengths, making it more sensitive to wavelength. The LBTEK Quartz Multi-Order Quarter-Wave Plate is commonly used to convert linearly polarized light into circularly polarized light. LBTEK offers both mounted and unmounted multi-order waveplates, with the mounted version featuring a non-detachable mechanical housing for easy use. Additionally, LBTEK provides quartz true zero-order waveplates and quartz zero-order waveplates, which are less affected by wavelength shifts, incident angles, and temperature variations. Besides the standard quartz multi-order quarter-wave plates, LBTEK also offers various customization services, including special dimensions, design wavelengths, and phase retardation specifications. For specific customization needs, please contact LBTEK Technical Support.

Attribute

Design wavelength266 nm - 1550 nm optional

Optical component materialQuartz crystal

Optical element diameter25.4 mm

Clear Aperture>90% CA

Latencymλ+λ/4 (where m is a positive integer)

Delay accuracy±λ/300、±λ/100

CoatingV-type anti-reflection coating

Surface finish (scratches/pits)10/5

Anti-reflective coatingR<0.25%<sup>a</sup>@Design Wavelength (6° incidence angle, single surface)

λ/10 @632.8 nm

Surface Parallelism<3 arcsec

Product Model	Design wavelength	Diameter	Clear Aperture	Unit Price	Lead Time
MQWP20-445BM	445 nm	25.4 mm	>90% CA	$214.94	6 weeks
MQWP20-1030BM	1030 nm	25.4 mm	>90% CA	$214.94	6 weeks
MQWP20-850BM	850 nm	25.4 mm	>90% CA	$214.94	6 weeks
MQWP20-442BM	442 nm	25.4 mm	>90% CA	$214.94	6 weeks
MQWP20-308BM	308 nm	25.4 mm	>90% CA	$214.94	6 weeks
MQWP20-532-1064BM	532 nm&1064 nm	25.4 mm	>90% CA	$214.94	6 weeks
MQWP20-1550BM	1550 nm	25.4 mm	>90% CA	$236.77	6 weeks
MQWP20-1310BM	1310 nm	25.4 mm	>90% CA	$214.94	6 weeks
MQWP20-1064BM	1064 nm	25.4 mm	>90% CA	$236.77	6 weeks
MQWP20-980BM	980 nm	25.4 mm	>90% CA	$236.77	6 weeks
MQWP20-905BM	905 nm	25.4 mm	>90% CA	$214.94	6 weeks
MQWP20-808BM	808 nm	25.4 mm	>90% CA	$236.77	6 weeks
MQWP20-800BM	800 nm	25.4 mm	>90% CA	$214.94	6 weeks
MQWP20-780BM	780 nm	25.4 mm	>90% CA	$236.77	6 weeks
MQWP20-670BM	670 nm	25.4 mm	>90% CA	$236.77	6 weeks
MQWP20-633BM	633 nm	25.4 mm	>90% CA	$236.77	6 weeks
MQWP20-532BM	532 nm	25.4 mm	>90% CA	$236.77	6 weeks
MQWP20-520BM	520 nm	25.4 mm	>90% CA	$214.94	6 weeks
MQWP20-488BM	488 nm	25.4 mm	>90% CA	$236.77	6 weeks
MQWP20-405BM	405 nm	25.4 mm	>90% CA	$236.77	6 weeks
MQWP20-355BM	355 nm	25.4 mm	>90% CA	$214.94	6 weeks
MQWP20-266BM	266 nm	25.4 mm	>90% CA	$214.94	6 weeks

Product Model	Design wavelength	Diameter	Clear Aperture	Unit Price	Lead Time
QWP20-935BM-SP	935 nm	25.4 mm	>90% CA	$229.06	6 weeks
QWP20-740BM-SP	740 nm	25.4 mm	>90% CA	$229.06	6 weeks
QWP20-435BM-SP	435 nm	25.4 mm	>90% CA	$229.06	6 weeks
QWP20-399BM-SP	399 nm	25.4 mm	>90% CA	$229.06	6 weeks
QWP20-1030BM	1030 nm	25.4 mm	>90% CA	$208.01	6 weeks
QWP20-850BM	850 nm	25.4 mm	>90% CA	$208.01	6 weeks
QWP20-445BM	445 nm	25.4 mm	>90% CA	$208.01	6 weeks
QWP20-442BM	442 nm	25.4 mm	>90% CA	$208.01	6 weeks
QWP20-308BM	308 nm	25.4 mm	>90% CA	$208.01	6 weeks
QWP20-532-1064BM	532 nm&1064 nm	25.4 mm	>90% CA	$208.01	6 weeks
QWP20-1550BM	1550 nm	25.4 mm	>90% CA	$208.01	6 weeks
QWP20-1310BM	1310 nm	25.4 mm	>90% CA	$208.01	6 weeks
QWP20-1064BM	1064 nm	25.4 mm	>90% CA	$208.01	6 weeks
QWP20-980BM	980 nm	25.4 mm	>90% CA	$208.01	6 weeks
QWP20-905BM	905 nm	25.4 mm	>90% CA	$208.01	6 weeks
QWP20-808BM	808 nm	25.4 mm	>90% CA	$208.01	6 weeks
QWP20-800BM	800 nm	25.4 mm	>90% CA	$208.01	6 weeks
QWP20-780BM	780 nm	25.4 mm	>90% CA	$208.01	6 weeks
QWP20-670BM	670 nm	25.4 mm	>90% CA	$208.01	6 weeks
QWP20-633BM	633 nm	25.4 mm	>90% CA	$208.01	6 weeks
QWP20-532BM	532 nm	25.4 mm	>90% CA	$208.01	6 weeks
QWP20-520BM	520 nm	25.4 mm	>90% CA	$208.01	6 weeks
QWP20-488BM	488 nm	25.4 mm	>90% CA	$208.01	6 weeks
QWP20-405BM	405 nm	25.4 mm	>90% CA	$208.01	6 weeks
QWP20-355BM	355 nm	25.4 mm	>90% CA	$208.01	6 weeks
QWP20-266BM	266 nm	25.4 mm	>90% CA	$208.01	6 weeks

Quartz Multi-Order Quarter-Wave Plates