# Mega-9 1550nm Bandpass Optical Filter 10nm Fwhm Od4 Glass IR Filter

> Mega-9 1550nm Bandpass Optical Filter 10nm Fwhm Od4 Glass IR Filter — a bandpass filter: Glass, 5mm-10mm thick, 1550nm. Specs, RFQ checklist and custom…

- Page: https://machiningglass.com/products/mega-9-1550nm-bandpass-optical-filter-10nm-fwhm-od4-glass-ir-filter/
- SKU: MG-241475
- Category: Optical Filters > Bandpass & Interference Filters
- Image: https://machiningglass.com/wp-content/uploads/2026/10/Mega-9-1550nm-Bandpass-Optical-Filter-10nm-Fwhm-Od4-Glass-IR-Filter.webp
- Updated: 2026-10-24

Product type: Bandpass Filter. Application: Medical, Optical, Industrial. Model: 21010103451.

## Overview

Mega-9 1550nm Bandpass Optical Filter 10nm Fwhm Od4 Glass IR Filter: a bandpass filter made from Glass. Listed geometry: thickness 5mm-10mm, round shape. Optical / electrical data: wavelength 1550nm, bandwidth 10nm, transmittance >90%. Typical applications: Medical, Optical and Industrial. Dimensions, material grade, coating and finish can be quoted to your drawing; the values above are the listed starting point.

## Specifications

| Parameter | Value |
| --- | --- |
| Material | Glass |
| Type | Bandpass Filter |
| Shape | Round |
| Usage | Medical, Optical, Industrial |
| Model NO. | 21010103451 |
| Thickness Range | 5mm-10mm |
| Color | No |
| Principle | Interference |
| Angle of incidence | 0° |
| Central Wavelength | 1550nm |
| Bandwidth | 10nm |
| Blocking Range | 800-2000nm |
| Blocking Depth | Od4 |
| Peak Transmittance | >90% |
| Center Wavelength (CWL) | Precisely positioned with a customization accuracy of up to ±0.25nm to ensure perfect matching with the emission spectrum of light sources and detector sensitivities. |
| Peak Transmittance (Tpeak) | High-transmission dielectric coating with typical peak transmittance >90% (up to >95% for specific bands), maximizing the retention of the effective signal light. |
| Bandwidth (FWHM) | Available in a wide range of options, from ultra-narrow band (<3nm), narrow band (3-20nm) to broadband (>20nm), catering to different spectral resolution requirements. |
| Warranty Period | 2 Years |
| Technology | Free technical support and solutions provided |
| Supplier | Shanghai Mega-9 Optoelectronic Co., Ltd. |

## Technical data

|   |   |   |   |
| --- | --- | --- | --- |
| Parameter | BP1064/1K | BP532/1K | BP632/1K |
| Center Wavelength (nm) | 1064 ± 0.15 | 532 ± 0.15 | 632 ± 0.15 |
| Bandwidth (FWHM, nm) | 1.0 ± 0.2 | 1.0 ± 0.2 | 1.5 ± 0.2 |
| Peak Transmittance (%) | ≥70 | ≥ 75 | ≥ 80 |
| Blocking Depth (OD) | OD5 | OD6 | OD6 |
| Surface Quality (S/D) | 60-40 | 60-40 | 60-40 |
| Operating Temp. (°C) | -40 ~ +85 | -40 ~ +85 | -40 ~ +85 |
| Dimensions (mm) | 25.4 *1.0 | 25.4 *1.0 | 25.4 *1.0 |

## What to specify when you request a quote

- **Spectral target** — listed as “1550nm”; state the centre or edge wavelength, the bandwidth and the minimum transmission in the passband.
- **Blocking** — listed as “800-2000nm”; give the blocking range and optical density (OD) the system needs.
- **Angle of incidence** — listed as “0°”; interference filters shift with angle, so specify the operating angle and cone.
- **Size and thickness** — listed as “5mm-10mm”; give outline, thickness and tolerance, and whether the filter is mounted.
- **Substrate** — listed as “Glass”; name the substrate glass if thermal or UV behaviour matters.
- **Surface quality** — quote scratch-dig for imaging paths.

## Engineering guides for this part

For material grades and coating options, see [Selecting Bandpass Filter Glass for Reliable Optical Performance](https://machiningglass.com/materials/selecting-bandpass-filter-glass-for-reliable-optical-performance/). How parts like this are machined and finished is covered in [Chalcogenide Glass Coating for IR Optical Components](https://machiningglass.com/capabilities/chalcogenide-glass-coating-for-ir-optical-components/). For an application example, read [Bandpass Filter Glass for Appliance Light Detection Modules](https://machiningglass.com/applications/bandpass-filter-glass-for-appliance-light-detection-modules/). A related standard product is [Bandpass Filter](https://machiningglass.com/products/bandpass-filter/).

## FAQ

### What is the Mega-9 1550nm Bandpass Optical Filter 10nm Fwhm Od4 Glass IR Filter made of?

It is listed as Glass. Other grades can be quoted if your application needs different transmission, thermal or chemical properties.

### What sizes and thicknesses are available?

The listing gives thickness 5mm-10mm. Custom outlines and thicknesses are made to drawing; state the tolerance you need.

### What optical or electrical performance does it have?

Listed values: wavelength 1550nm, bandwidth 10nm, transmittance >90%. Confirm the values at your operating wavelength, angle and temperature when you request a quote.

### Where is this bandpass filter used?

Listed applications: Medical, Optical and Industrial.

### What should I include in a quote request?

Include spectral target, blocking, angle of incidence, size and thickness and substrate, plus quantity and a drawing if the part is custom.

## Request a quote

Send drawings, tolerances and quantity: https://machiningglass.com/contact/?rfq_product_id=10609#mg-rfq

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Source: Custom Precision Glass Machining — https://machiningglass.com/