FOCI's Polarization Independent Isolators are ultra reliable devices featuring high isolation and low insertion loss over wide ranges of temperature and wavelengths. The Polarization Independent Isolators are designed to block most of backreflection and back scattering signals present in the transmission system. With its innovative patented design, FOCI's M-II series Polarization Independent Isolators are designed to provided ultimate isolation and exceptional low insertion loss for all applications demanding critical performance. Featuring unbeatable, PDL, PMD, and other optical characteristics, the M-II series are the best quality isolators available. These highly reliable singlemode isolators are fabricated from reliable BIG and YVO4 crystals. Using laser-welding technology, the M-II series are optical path epoxy free. The M-II series also come with your choice of single or dual stage packaging. Various types of pigtailing and connector terminations are available to meet your requirements.
Features
- Note: SOP = states of polarization.
- Ultra high isolation.
- Minimum Polarization mode dispersion (PMD) free.
- Polarization mode dispersion free.
- Optical path epoxy free.
- Low insertion loss.
- Environmentally stable.
| Item | Polarization Independent Isolators | Polarization Independent Isolators | Polarization Independent Isolators | Polarization Independent Isolators | Polarization Independent Isolators | Polarization Independent Isolators |
|---|---|---|---|---|---|---|
| Operating wavelength, nm | 1310, 1480, 1550 | 1310, 1480, 1550 | 1310, 1480, 1550 | 1310, 1480, 1550 | 1310, 1480, 1550 | 1310, 1480, 1550 |
| Stage | Single | Single | Single | Dual | Dual | Dual |
| S | H | A | S | H | A | |
| Peak isolation, dB (typical) | > 40 | > 38 | > 36 | > 60 | > 55 | > 50 |
| Minimum isolation, dB (over the center wavelength +/- 20nm), (at 25 Celsius, all SOP) | > 32 | > 28 | > 26 | > 48 | > 46 | > 44 |
| Minimum isolation, dB (over the temperature range 0 ~ 60 Celsius), (all SOP) | > 31 | > 27 | > 26 | > 47 | > 45 | > 44 |
| Typical insertion loss, dB (over the center wavelength +/- 20nm), (at 25 Celsius, all SOP) | 0.4 | 0.6 | 0.7 | 0.6 | 0.8 | 1.0 |
| Maximum insertion loss, dB (over the operating range +/- 20nm), (at 20 ~ 60 Celsius, all SOP) | 0.5 | 0.7 | 1.0 | 0.7 | 0.9 | 1.3 |
| Polarization dependent loss, dB | < 0.1 | < 0.15 | < 0.2 | < 0.1 | < 0.15 | < 0.2 |
| Return loss, dB (input/output) | > 65/60 | > 60/55 | > 60/55 | > 65/60 | > 60/55 | > 60/55 |
| Polarization mode dispersion, ps | < 0.5 | < 0.5 | < 0.5 | < 0.05 | < 0.07 | < 0.15 |
| Operating temperature (Celsius) | -20 ~ +60 | -20 ~ +60 | -20 ~ +60 | -20 ~ +60 | -20 ~ +60 | -20 ~ +60 |
| Storage temperature (Celsius) | -45 ~ +85 | -45 ~ +85 | -45 ~ +85 | -45 ~ +85 | -45 ~ +85 | -45 ~ +85 |
| Maximum output power, mW | 300 | 300 | 300 | 300 | 300 | 300 |
Main Products
connector parts, patchcord / pigtails, coupler, attenuator, RFTS ( remote fiber testing systems ), cable installation on CATV systems, fiber optic networks, closures, patch panels, etc.