In Stock High Performance Long Pass Filter (LPF) for Optical Communication

Spot Stock LPF1484/1479 Long-Pass Filter (Single Product with Dual Wavelength Bands) Detailed Introduction

1. Product Overview 

2. Product Features 

• Immediate Delivery with Sufficient Stock: This LPF1484/1479 is a single product with two wavelength bands (1484nm and 1479nm), both of which are in full spot stock, with no minimum order quantity required. Orders can be delivered within 24-48 hours after selecting the required wavelength band, which effectively solves the problem of urgent procurement needs of customers and avoids project delays caused by long production cycles.
• High Precision Wavelength Control: Adopting advanced thin-film coating technology, the cutoff wavelength accuracy of both bands is controlled within ±2nm, the cutoff edge is steep (≤5nm), and the separation of long and short wavelengths is precise, which can effectively block unwanted short-wavelength signals and ensure the purity of the target signal.
• Excellent Optical Performance: The passband transmittance of both wavelength bands is as high as ≥90%, which maximizes the utilization of optical power; the blocking depth is ≥OD4, which can effectively suppress short-wavelength noise and interference, and the insertion loss is ≤0.3dB, which minimizes the loss of optical signals during transmission.
• Durable and Stable Structure: Made of high-purity fused silica substrate, the product has excellent mechanical stability and environmental adaptability, and is equipped with scratch-resistant and moisture-proof coatings. It can operate stably in harsh environments such as high and low temperatures, humidity and vibration, and has a long service life.
• Wide Compatibility: The standard size is easy to integrate into various optical devices, such as optical transceivers, spectrometers, optical sensors, etc., and is compatible with most optical communication and optical sensing systems, with strong versatility. Both wavelength bands can adapt to different application scenarios.
• Compliant with Industrial Standards: The entire production process complies with RoHS and other industrial standards, with strict quality inspection procedures, ensuring that each product (both wavelength bands) meets the requirements of high-performance optical components and can be safely used in various industrial and medical scenarios.

3. Applications 

• Optical Communication Systems: Used in fiber optic transceivers, fiber optic transmission modules and optical distribution frames, it filters short-wavelength noise in optical signals, ensures stable transmission of long-wavelength signals, and improves the reliability of fiber optic communication systems. The two wavelength bands can be matched according to the actual transmission requirements.
• Optical Sensing and Detection: Integrated into optical sensing equipment, such as environmental monitoring sensors, water quality detection instruments, and food safety detectors, it is used to separate target wavelengths and improve the accuracy and sensitivity of detection signals. Different wavelength bands can adapt to different detection scenarios.
• Industrial Inspection Equipment: Applied in machine vision systems for semiconductor wafers, display panels and pharmaceutical products, it filters short-wavelength stray light, enhances image clarity, and improves the accuracy of defect detection.
• Spectroscopy Analysis: Used in UV-Vis-NIR spectrometers, it is used for wavelength separation and signal purification in chemical analysis, material composition testing and environmental monitoring, ensuring the accuracy of analytical data. The two wavelength bands can meet different spectral analysis needs.
• Medical Optical Devices: Integrated into medical diagnostic equipment, such as fluorescence microscopes and blood component analyzers, it filters short-wavelength background light and improves the clarity and accuracy of medical detection signals.
• Test and Measurement Instruments: Used in optical test instruments to isolate specific long wavelengths, providing accurate wavelength reference for the performance testing of optical components. The two wavelength bands can be selected according to the test requirements.

4. Stock and Delivery Instructions 

• Sample Order: After confirming the required wavelength band (1484nm or 1479nm), it will be delivered within 24 hours (support small batch sample testing).
• Bulk Order: After confirming the required wavelength band and order quantity, it will be delivered within 48 hours (the delivery time can be adjusted according to the order quantity, with priority given to meeting customer delivery needs).
• Customization Service: Supports customization of size, cutoff wavelength tolerance and coating parameters for both wavelength bands. The customization cycle is 3-5 working days, and spot priority is given to customized products that meet the standard specifications.