A laser diode, also known as an injection laser or diode laser, is a semiconductor device that produces coherent radiation (in which the waves are all at the same frequency and phase) in the visible or infrared (IR) spectrum when current passes through it.
This article is about the city in Jay County. For the city in Fountain County formerly named Portland, see Fountain, Indiana. Portland is a city in and the county seat of Jay County, Indiana, United States. The population was 6,223 at the 2010 census.
Pay a Parking Ticket Pay your City of Portland parking citation online through Multnomah County Circuit Court. Parking Permits Information on special parking permits. Parking Enforcement Parking regulations, violations, and how to pay tickets. Metered Parking To report broken meters call 503-278-5410.