Laser 2000

Polarisers, Polarising Prisms and Beamsplitters

Generate linear or circular polarised light or split light into its polarised components.

When choosing a polariser it is normally a balance of several key considerations: cost, wavelength range, aperture size, acceptance angle, damage threshold, transmission efficiency, and extinction ratio.

For more information please read the section Polariser Selection “Guide” in our blog Polarisation & phase manipulation with retarders (waveplates)

Polarisers come in three main forms: Linear; Beam-splitting and Circular.

Linear Polarisers
Ideal linear polarisers transmit 100% of the light when the incoming light is polarised and aligned with the polarisation axis or 50% if the incoming light is unpolarised.

The ratio between the transmission of the desired polarisation direction and the undesired orthogonal polarisation direction is the contrast or extinction ratio.

Beamsplitting Polarisers
Beamsplitting polarisers separate the incoming unpolarised light into two (usually) orthogonally polarised beams. Most commonly this is done via birefringent crystals such as Calcite via beam splitting cubes or polarising prisms.

Other beamsplitters such as wire grid polarisers contructed of a thin layer of aluminium microwires allow for durability, contrast and a wide field of view through to IR wavelengths.

Laser 2000 offer laser line and broadband beamsplitters.

Circular Polarisers
Mainly used for optical isolation with two main designs:

1) Dichroic circular polarisers/zero-order retarder
2) Beamsplitting polariser/zero-order retarder

Both designs take advantage of the handedness change of a circularly polarised beam upon reflection. By changing the handedness of the circularly polarised beam, back reflections are blocked by the polariser.

Showing all 4 results

10 per page
Showing 1 – 4 of 4 results Showing all 4 results Showing one result No results found, please broaden your parameters, or get in touch.
Filters Sort results
Reset Apply
Products
Product Code
Description
Linear Polariser
A dichroic has selective absorption of one polarisation state, transmitting the other.   Available in lower cost polymers and higher precision glass.  Suitable for lower power (~W's),  larger aperture applications
Read more...
Wire Grid Polariser
A reflective polariser transmits the desired polarisation and reflects the rest. Available as plates, cubes or prisms. Suitable for higher damage thresholds (>50kW), larger acceptance angle (±22.5°)
Read more...
Thin-film polarisers in plate or cube form, utilising a multilayer dielectric coating which works on interference effects.  The majority of designs are such that the incidence angle is 45°, such that the transmitted and reflected beams.  These optics are ideal for high transmission, low loss and specific laser lines or narrow bands
Read more...
Birefringent polarisers transmits the desired polarisation and scatters/deviate's the rest.  This utilises the fundamental property of birefringence, where the refractive index depends on its polarisation. Commonly in the form of joined prisms  this type of polariser offers higher extinction ratios, higher damage thresholds, broad wavelength ranges but are more expensive
Read more...

Founded in 1979 by Tom Baur a pioneer in the field, awarded the SPIE G.G.Stokes award in 2018, Meadowlark optics are polarisation experts, providing polarisation components, liquid-crystal devices, spatial light modulators and polarisation instrumentation.

In the twenty-first century, Meadowlark products help position customers worldwide to pioneer their own innovations. These include advances in liquid crystals with one-of-a-kind polarization controllers and the Liquid Crystal Stokes Polarimeter. In other areas, they measure there waveplate product line to subnanometer precision. One thousandth of a wave of retardance is our standard accuracy.

OptoSigma is a leading global manufacturer of Optical Systems, Optical Assemblies, Optical Coatings, Opto-Mechanics, Manual and Motion Control Stages, and a variety of complimentary Photonics products. With over 19,000 standard items, they provide a wide range of high-quality products and they also manufacture custom solutions to support various industries including Life Sciences, Bio-Medical, Semiconductor, Displays, Research, Telecommunications, Aerospace and Defense.

BACK
TO TOP

Ask the Expert

For over 30 years, Laser 2000 has supplied fibre optic equipment and worked with global partners like VIAVI Solutions, US Conec and INNO Instrument.

For more information on our fibre optic technology and our wide range of products, please visit our Laser 2000 Networks website, or get in touch with our specialist through the form below.

Alternatively, just call +44 (0) 1933 461 666 and ask to speak to Mike.

Mike Fletcher

BSc (Hons)

Ask the Expert

If you’re interested in the products shown here, or have questions about something you can’t find on our website, please get in touch through the form below.

Our knowledgeable sales team will be happy to help. We can normally source exactly what you need, or work with you to come up with custom solutions.

Alternatively, just call +44 (0) 1933 461 666 and ask to speak to the Photonics team.

Ask the Expert

If you’re interested in the products shown here, or can’t find exactly what you need, please get in touch with our specialist through the form below.

Alternatively, just call +44 (0) 1933 461 666 and ask to speak to Toby.

Toby Scrivener

MPhys (Hons)

Ask the Expert

If you’re interested in the products shown here, or can’t find exactly what you need, please get in touch with our specialist through the form below.

Alternatively, just call +44 (0) 1933 461 666 and ask to speak to Karen.

Karen McGeachy West

MPhys (Hons)

Ask the Expert

If you’re interested in the products shown here, or can’t find exactly what you need, please get in touch with our specialist through the form below.

Alternatively, just call +44 (0) 1933 461 666 and ask to speak to Peter.

Peter Collins

BEng (Hons), MSc (Eng)

Ask the Expert

If you’re interested in the products shown here, or can’t find exactly what you need, please get in touch with our specialist through the form below.

Alternatively, just call +44 (0) 1933 461 666 and ask to speak to Sian.

Siân Brooks

BSc (Hons)

Ask the Expert

If you’re interested in the products shown here, or can’t find exactly what you need, please get in touch with our specialist through the form below.

Alternatively, just call +44 (0) 1933 461 666 and ask to speak to Dan.

Dan Young

BSc (Hons)

Ask the Expert

If you’re interested in the products shown here, or can’t find exactly what you need, please get in touch with our specialist through the form below.

Alternatively, just call +44 (0) 1933 461 666 and ask to speak to Paul.

Paul Williams

PhD

Ask the Expert

If you’re interested in the products shown here, or can’t find exactly what you need, please get in touch with our specialist through the form below.

Alternatively, just call +44 (0) 1933 461 666 and ask to speak to Lisa.

Lisa Thomson

MPhys

Ask the Expert

If you’re interested in the products shown here, or can’t find exactly what you need, please get in touch with our specialist through the form below.

Alternatively, just call +44 (0) 1933 461 666 and ask to speak to Alex.

Alex Elliott

MPhys (Hons)

Ask the Expert

If you’re interested in the products shown here, or can’t find exactly what you need, please get in touch with our specialist through the form below.

Alternatively, just call +44 (0) 1933 461 666 and ask to speak to Shannon.

Shannon O’Connor

BSc (Hons)

Ask the Expert

If you’re interested in the products shown here, or can’t find exactly what you need, please get in touch with our specialist through the form below.

Alternatively, just call +44 (0) 1933 461 666 and ask to speak to Sarah.

Sarah Hampson

PhD, MChem (Hons), MRSC

What's New?

We’ve recently refreshed our website, and we hope that you will find the changes to be a big improvement. We’ve worked hard to make it easier to navigate the site, and to find exactly what you need from among our vast and diverse range of products.

Missing e-commerce?

One thing that we’ve not carried over from the previous site at this time is the facility to order online for a select range of our products, which you may have been used to in the past. “Off-the-shelf” items represent a small part of our product range; most often a purchase requires a more in-depth discussion between our sales team and the customer to match the right product to the user’s application. For this reason we have focussed on making it as easy as possible to request a quotation from our sales team.

Please rest assured that we will get back to you with pricing promptly, and will work with you to make sure the products you buy are exactly what you need. Once you’re ready to order, our sales team will work through the process with you, to make it as seamless as possible.

Once you’ve selected all the items you’re interested in, by clicking “Add to Quote” on the product page, just click “View Quote Request List” or the icon in the top navigation bar, check your list, set quantities, complete your details and submit the form. Our sales team will respond by email, in a timely manner.

If you have any other questions in the meantime, please get in touch directly.