Home : : Corporate Information : : Application : : Product Lineup : : OCJ Core Technology : : Quality Control & Production Process Corporate Information : : Company profile : : History : : Chairman's message : : Main customers : : Contact Application : : Filter for CD & DVD pick-up : : Filter for optical communication : : Filter & mirror for LCD projectors : : Filter for the fluorescence / Raman analysis Product Lineup : : Interference filter : : Infrared filter : : Laser mirror : : Beam splitter : : High performance cold mirroron deep dish : : Cold mirror / filter : : Dichroic mirror / filter : : Antireflection : : Neutral density filter : : Metal coating : : DLC coating OCJ Core Technology : : Coating process : : Optics thin-film design : : Control technology Quality Control & Production Process : : Quality Control : : Production control : : Production process OCJ will provide a high quality and highly reliable filter which has optical characteristics such as low insertion loss, flat transmittance and steep cut on slope using our own unique plasma ion process . This filter coating can be applied on to polyimide and also directly on to an optical element and not only on to the conventional glass substrate. We will customize such filter on your request re CWL, dividing wavelength, dividing ratio, AOI, etc. 5 cavity 100GHz Band Pass Filter [Purpose] DWDM (Add/Drop, Mux/Demux) Noise cut of light source Improvement of AWG cross talk [Characteristics] Channel spacing 100GHz, 200GHz, 400GHz, etc. [Actual Data] Pass band loss : -0.136dB Band width @0.5dB : 0.56nm Band width @25dB : 1.09nm Reflection over pass band : -17.35dB For Passive Optical Network [Purpose] High speed broad band PON system [Characteristics] T @ 1.3um and 1.49um, R @ 1.55um T @ 1.55um, R @ 1.3um and 1.49um [Actual Data] Pass band loss : -0.06dB 0.1dB / 30dB : 14.63nm Reflection over pass band : -20.1dB Coarse WDM [Purpose] CWDM (metro, access application) [Characteristics] Channel spacing 10nm, 20nm, 40nm May use polyimide substrate [Actual Data] Pass band loss : -0.123dB Band width @0.5dB : 16.85nm Band width @25dB : 24.85nm Reflection over pass band : -18.4dB Polyimide 1310-1490/1550 separation filter (at 8 degrees) [Purpose] High speed broad band PON system [Characteristics] Polyimide substrate are used Total substrate thickness is less than 30um Glue type It is possible to insert it into AWG [Actual Data] Pass band loss : -0.196dB 0.25dB / 30dB : 20.1nm C-band Gain Flattening Filter [Purpose] Flattening gain such as EDFA [Characteristics] Low insertion loss Flat gain characteristics [Actual Data] Deviation : +/-0.15dB Peak Insertion Loss : 0.063dB Non Polarization Beam Splitter [Purpose] System monitoring [Characteristics] Non (low) Polarity dependency Various division ratio [Actual Data] AOI 45 degrees T over C band : 93.5% +/-0.5% PDL(R) : Anti Reflection Coating [Purpose] Anti reflection [Characteristics] Covering S, C and L band [Actual Data] Reflection Copyright(C) 2004 Optical Coatings Japan All Rights Reserved. : : info@ocj.co.jp