SIGMAKOKI

Optical System & Interferometers
D-TOP Optical System DTM
Micro Observation Interferometer DTM-MMHI
Catalog Code : W1004



Mach-Zehnder interferometer that can be observed transmitted wavefront of the glass substrate of about 1mm.
By using a base of D-TOP, it shortens the distance to the imaging lens from the sample and is imaged an enlarged image of the sample onto the camera.
Images captured by the camera can be taken directly to a PC via USB and kept on record about stop and moving images.
In addition, it allows to adjust the brightness of the laser by using two polarizing plates and to be observed in the best image without saturation.

Product Name Part Number Quantity JP Yen Qty Add to Cart
Laser Module DTM-05-LHP-111 1 Contact Us
Mirror Module DTM-TFA-30C05-10 3 90,900
Polarizer Module DTM-SPF-30C-32 2 100,800
Cube Half Mirror Module DTM-HBCH-20-550 1 94,400
Plate Half Mirror Module DTM-PSMH-30C03-10-550 1 46,250
Small Sample Holder Module DTM-MLF-SF 1 61,000
Lens Module (Convex Lenses) DTM-SLB-30-50PM 1 48,150
C Mount Camera Module DTM-CMH 1 136,600
D-TOP Breadboad DOBC-2632 1 64,000
Total Contact Us
R Measuring Interferometer DTM-RMFI
Catalog Code : W1022



It is a device that uses an interferometer and measures the radius of curvature of the concave surface of the small curvature.
There are two positions where can be observed interference fringes reflected on the concave surface.
One position is that the focus is on a concave surface of the achromatic lens, and the other position is that the focus is on the center of curvature of the concave surface.When reading the micrometer on the stage carrying the sample, the distance between the two positions can be observed the interference fringes of concave sample, and it can be used to determine the precise radius of curvature.

Product Name Part Number Quantity JP Yen Qty Add to Cart
Laser Module DTM-05-LHP-111 1 Contact Us
Laser Beam Expanders LBED-10 1 42,000
Mirror Module DTM-TFA-30C05-10 3 90,900
Polarizer Module DTM-SPF-30C-32 2 100,800
Plate Half Mirror Module DTM-PSMH-30C03-10-550 1 46,250
Prototype Beam Spliter Module DTM-PSM33-30C03-10W-550 1 48,150
Achromatic Doublets Lens Module DTM-DLB-15-50PM 1 44,450
Cancave Sample Holder Module TAT-AD20-TSD-40801S 1 115,300
Lens Module (Convex Lenses) DTM-SLB-15-100PM 1 40,750
C Mount Camera Module DTM-CMH 1 136,600
D-TOP Breadboad DOBC-2632 1 64,000
Total Contact Us
Coherent Length Measuring Machine DTM-CLMI
Catalog Code : W1023




As a polarizing Michelson interferometer using PBS and 1/4 wave plate,we have measured the coherent length of the background light of the semiconductor laser.
First, it takes the alignment of the interferometer in the He-Ne laser and retracts mirrors on the stage, and then collimating light of the semiconductor laser is incident to the interferometer. After removing the laser light by the polarizing plate, the semiconductor laser is observed only the background light by the camera.
By adjusting the movable mirror little by little, it can be found the position that the interference fringes appear.
The length of the range that is visible the interference fringes will be coherent length.

Product Name Part Number Quantity JP Yen Qty Add to Cart
Laser Module DTM-05-LHP-111 1 Contact Us
Polarizer Module DTM-SPF-30C-32 2 100,800
Optical Path Switching Mirror Module TFA-30C05-10-TSD-40801S 1 64,500
1/2 Waveplate Module DTM-WPQ-6328-2M 1 103,900
PBS Module DTM-PBS-20-6328 1 107,400
1/4 Waveplate Module DTM-WPQ-6328-4M 2 207,800
Mirror Module DTM-TFA-30C05-10 2 60,600
Moveable Mirror Module TFA-30C05-10-TSD-401S 1 42,900
Plano Concave Lens Module DTM-SLB-10-30NM 1 40,150
C Mount Camera Module DTM-CMH 1 136,000
D-TOP Breadboad DOBC-2632 1 64,000
Total Contact Us
Custom-made

TOP is configured using the catalog product primarily, but it may be requested a adapter, holder and base that are not in the catalog in order to fix a light source, special shape sample and detector. In such a case, if you can tell us the specifications (dimension) of the light source, sample and detector, we can produce the dedicated holder. In addition, for a possible combination of catalog products, we can do the alteration of the products and produce the custom-made connecting plate.
Please contact our International Sales Department.