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.
Every town and city in our area rolls out the welcome mat for visitors during their major annual festivals, and other events throughout the year such as the Seattle to Portland Bicycle Classic and Southwest Washington Fair bring thousands of people through the area. There truly is something for everyone in all the events Lewis County has to offer.