David fiber device Ltd
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Fiber coupler, 840nm, 0.4dB typical excess loss, HI 780C fiber and 780-HP fiber.
The fiber couplers with special short wavelength are widely used in optical coherence tomography (OCT) application.
Features
Window : single window
Typical excess loss : 0.4dB
Directivity: ≥50dB
Compact size: 3.0x54mm package size
Applications
OCT
Raman system
| Specifications | ||
| Parameters | Unit | Specification |
| Operating wavelength Range | nm | 840 |
| Typical excess loss | dB | 0.4dB |
| Coupling ratio | % | 50:50, 1:99, 30:70, etc |
| Packge size | mm | 3.0x54 |
| Directivity | dB | ≥50 |
| Return Loss | dB | ≥50 |
| Power handling(mW) | mW | ≤500 |
| Pigtail length | m | 1m or special |
| Fiber type | - | HI 780C and 780-HP |
| Tensile Load | N | ≤5 |
| Operating Temperature | C | -40 to +85 |
| Storage Temperature | C | -40 to +85 |
| Remark | ||
| * Above specifications are tested without connector at room temperature With connector, 0.3dB higher for IL & 5dB lower for RL per connector. | ||
Q&A:
Q: What's your Payment terms?
A: We accept TT & Western Union for payment.
Q: How to order a sample?
A: You can contact us directly and tell us your requirements on any of our products.
Q: Could you print our company logo or design on the products?
A: Yes, we can accept your need but we will share the charge with you.
Q: If we decide to move forward with our order what is the next step?
A: You place an order first. Then we will send you PI. After you settle the payment by TT or the Western Union. We will arrange production for you.
Q: What is your normal production lead time for a first order and then for repeat orders?
A: It depends on the product you need. For example, if you purchased a 1550nm fiber circulator for your first order, and then you look for it again, but we will check the material of it and tell you the delivery time.
Q: Do you have warranty policy?
A: Yes, we have. We provide 12 months maintenance warranty.