JDSU L4ti Series

      The JDSU L4ti Series are High-Power 10 W 9xx nm Fiber-Coupled Diode Laser designed for fiber laser pumping.The JDSU L4ti Series expands the L4 and L4i platforms by offering a tighter wavelength range specification at 976 nm .The L4ti is specified at ±3 nm around 976 nm for pumping fiber lasers inthis narrow pump absorption bandwidth by controlling accurately the wavelength of the epitaxial structure during the growth. The L4ti offers a high degree of feedback protection which allows end users to operate the fiber laser in a feedback riskfree environment for the diode laser, and at a less costly solution than a traditional isolation system.
      The JDSU L4ti Series have seven key features.The first one is that the L4ti offer 976±3 nm wavelength.The second one that the L4ti offers full fiber laser feedback protection.The third one is about 10 W output power.The fourth one about high reliability.The fifth one is about 105 m aperture.The sixth one is about 0.22 or 0.15 NA.The last one is about isolated electrical contacts.
      The JDSU L4ti Series have some absolute maximum ratings.The maximum of Iop (Operating current) is 14 A.The maximum of Vrvs (Reverse voltage) is 2.0 V.The maximum of Top (Case operating temperature(Noncondensing, maximum)) is 50°C while The minimum of Top is 15°C.The maximum of Tstg (Storage temperature(Noncondensing, 2000 hours)) is 70°C while The minimum of Tstg is -30°C.The maximum of Tls (Lead soldering temperature, 10 s max) is 300°C.The maximum of RH (Relative humidity, non-condensing, ambient < 45°C) is 85%.The maximum of Vesd (Electrostatic discharge (ESD)) is 500 V.Note: C = 100 pF, R = 1.5 k, human body model, shown to be not damaging to its LI characteristics or its reliability, I-V curves may change in this ESD environment.The minimum of fiber bend radius (long term deployment) is 30 mm.Minimum bend radius of 30 mm is for long term mechanical fiber reliability; however for 0.15 NA some optical loss may occur and a minimum bend radius of 45 mm is recommended for layout with multiple fiber coils.The maximum of Fiber axial pull force, 15 s is 5 N.The maximum of Fiber side pull force, 15 s is 2.5 N.