1. Different parameters
(1) OM1 refers to 50um or 62.5um core diameter multimode optical fiber with full injection bandwidth of 850/1300nm above 200/500MHz.km;
(2) OM2 refers to 50um or 62.5um core diameter multimode optical fiber with full injection bandwidth of 850/1300nm above 500/500MHz.km;
(3) OM3 is a 50um core diameter multimode fiber optimized by 850nm laser. In 10Gb / s Ethernet with 850nm VCSEL, the optical fiber transmission distance can reach 300m;
(4) OM4 is an upgraded version of multi-mode optical OM3 fiber, and the optical fiber transmission distance can reach 550m.
2. Different uses
OM1 and OM2 have been widely deployed in buildings for many years, supporting the maximum value of 1GB Ethernet transmission;
OM3 and OM4 optical cables are usually used in the data center cabling environment, supporting 10g or even 40 / 100g high-speed Ethernet transmission.
3. Different fiber designs
OM1 and OM2 are LED (light emitting diode) as the basic transmission light source, while OM3 and OM4 are suitable for both LED and LD (laser diode) light source transmission.
4. Different transmission speed and bandwidth
The transmission speed and bandwidth of OM optical fiber jumper are increased step by step.
5. Different functions and features
(1) OM1: The core diameter and numerical aperture are large, which have strong light collecting ability and bending resistance;
(2) OM2: The core diameter and numerical aperture are small, which can effectively reduce the mode dispersion of multimode fiber, significantly increase the bandwidth and reduce the production cost by 1/3;
(3) OM3: The flame retardant sheath can prevent the spread of flame, smoke, acid gas and toxic gas, and meet the requirement of 10 GB / s transmission rate
(4) OM4: Developed for VSCEL laser transmission, its effective bandwidth is more than twice that of OM3.
If you want to inquire about purchasing optical fiber patch cord, welcome to contact ivy.
Ivy from HTF team and will assist you asap.
Email: ivy@htfuture.com Skype: live:sales6_1683 Whatsapp/wechat: +8618123672396
